Ayah akan membuat sebuah kolam ikan hias. Kolam tersebut berbentuk lingkaran dengan panjang diameter 80 cm, luas tanah yang di perlukan untuk membuat kolam adalah??​

Answers

Answer 1

Answer:

[tex]A=5024\ cm^2[/tex]

Step-by-step explanation:

Father will make an ornamental fish pond. The pool is circular with a diameter of 80 cm, the area of ​​land needed to make a pool is ??

The diameter of a circular pool, d = 80 cm

It means that,

Radius, r = d/2

r = 40 cm

We need to find the area of the land needed to make a pool. The area of a circular path is given by :

[tex]A=\pi r^2[/tex]

Put the values in the above formula.

[tex]A=3.14\times (40)^2\\\\A=5024\ cm^2[/tex]

So, it will require [tex]5024\ cm^2[/tex] area of land to make a pool.


Related Questions

What is an equation of the line that passes through the points (4, -1) and
(-8, – 7)? Put your answer in fully reduced form.

Answers

Answer:

y= x/2-3

Step-by-step explanation:

PLEASE HELP!!
Complete each statement from the information given and state the reasons and the triangle criterion you used. If the triangles cannot be shown to be congruent, leave the box for the second triangle blank and chose for a reason “Cannot be determined.”

a

Is ∆GAS ≅ △_____

By rule____

Answers

Answer:

ΔGAS ≅ ΔIOL By the Angle-Angle-Side (AAS) rule of congruency

Step-by-step explanation:

The given information are;

Statement                                  [tex]{}[/tex]                               Reason

Segment [tex]\overline {SA}[/tex] is congruent to [tex]\overline {OL}[/tex]              [tex]{}[/tex]As shown in the diagram provided

∠SAG is congruent to ∠LOI               [tex]{}[/tex]       As shown  in the diagram provided

∠SGA is congruent to ∠LIO               [tex]{}[/tex]       As shown  in the diagram provided

Therefore, ΔGAS ≅ ΔIOL By the Angle-Angle-Side (AAS) rule of congruency

Given that the the number of interior angles of triangle = 3 and the sum of the interior angles of a triangle = 180°, the third angle can be defined by specifying the measure of two of the angles

Therefore, the Angle-Angle (AA) rule of similarity can be used to prove the congruency of two triangles when they have one side of each triangle which are congruent.

Answer:

∆GAS ≅ △IOL By rule ASA, AAS

Step-by-step explanation:

By looking at the triangle, you can see two little quarter-circle things inside the triangle (I don't know what they are called). That means it has 2 angles.  We already know that it can't be SSS or SAS because we have 2 angles, as I said.

If you look at the triangle's sides, you can see that there is a side with a dash on it. That means that it is a side in ASA, AAS, etc. So there we go. We've figured it out. There is one side and two angles.  Therefore, our answer is ASA or AAS

Q(8,7), r(-7,2) s(8,13),t(-11,2) is it parallel

Answers

Answer:

it’s neither parallel or perpendicular

Step-by-step explanation:

An equivalent fraction for 2/3 is ____

2/6

10/15

8/15

1/3

Answers

1/3 APEX I have on my test

I need help !!!!! Please !!!! Thank youuu

Answers

by the looks of the photo, it seems like R and S are the same. therefore, the answer would be B. 55
if R is the same as S, and R is 55 degrees, S will be the same.
i hope i helped!

Answer:

∠ S = 55°

Step-by-step explanation:

∠ R and ∠ S are vertical angles and congruent, thus

∠ S = ∠ R = 55°

What kind of transformation is illustrated in this figure?  

A) reflection
B) translation
C) dilation
D) rotation​

Answers

Answer:

Translation

Step-by-step explanation:

Translation means that it moves without changing shape, and here it just moves to the right, but the shape is still the same

what is the absolute of the integer of 6​

Answers

Answer:

i think its 6...

Step-by-step explanation:

it's basically how far is it from 0 sooo

Answer:

6

Step-by-step explanation:

Positive 6 is six away from 0, therefore the answer is 6.

suppose y varies directly as x. If y = 30 when x = 8, find y when x = 4

Answers

Answer:

15

Step-by-step explanation:

I hope you have a great day and welcome to brainly!

On Monday, Jayla raised $30 and Carlos raised $50.
After that, Jayla raised $12 per day and Carlos
raised $7 per day. After how many days will they
have raised the same amount?

They will raise the same amount after days.

Answers

Answer:

84 days

Step-by-step explanation:

You would use the LCM to solve this.

12 and 7 don't share any common factors other than 1,

so you would multiply 12 x 7, which gets you 84.

After 84 days they would have raised the same amount.

Is a teachers popularity independent of their effectiveness? Yes or No

Answers

Answer:

Yes it is (Hope this helped!)

What is the rate of change of the following equation? 2y + x = -2​

Answers

Answer:

-1/2

Step-by-step explanation:

The general rate of change can be found by using the difference quotient formula. To find the average rate of change over an interval, enter a function with an interval: f(x)=x2,[2,3]f(x)=x2,[2,3]

−12-12

The cost of a DVD box set increased from $30 to $35. A student says that this represents a 5% increase in the price. Explain the student’s error. What is the actual percent increase?

Answers

Answer:

17%

Step-by-step explanation:

$30-100%

$35-x%

x%=35*100/30

x%=116.6%

116.6%-100%=16.6%~17%

12. The perimeter of a rectangle is 50 feet. The width is 5 less than the
length. What are the dimensions of the rectangle? (Write your answer as
Length, Width)

Answers

Step-by-step explanation:

Length = x

Width = (x-5)

Perimeter = 2 lengths + 2 widths

50 ft = x + x + (x-5) + (x-5)

50 ft = 4x - 10

60 ft = 4x

15 ft = x

length = x = 15 ft

width = (x-5) = (15 -5) = 10 ft

dimensions = length × width

= 15 ft × 10 ft

if you wanna check,

50 ft = x + x + (x-5) + (x-5)

50 ft = 15 + 15 + (15-5) + (15-5)

50 ft = 30 +(10+10)

50 ft = 30 + 20

50 ft = 50

x-2y=-13 4x=2y=18 subsitutuion

Answers

X=1,y=7
These are the answers

Triangle ABC is rotated by 135 degrees about point S to create A'B'C' what is the perimeter of ABC

Answers

Answer: 12.9

Step-by-step explanation:

5.1 + 2 + 5.8 = 12.9

The perimeter of the triangle ABC is 12.9 units.

What is the perimeter of a triangle?

The perimeter of a triangle is the sum of length of three sides of the triangle.

Given, the triangle ABC is rotated by 135 degrees about point S to create the triangle A'B'C'.

We know, after rotation of a figure, the whole dimension of the figure remains the same.

Therefore, AB = A'B' = 5.1 units

BC = B'C' = 2 units

CA = C'A' = 5.8 units

Hence, the perimeter of the triangle ABC

= (5.1 + 2 + 5.8) units

= 12.9 units

Learn more about the perimeter of a triangle here: https://brainly.com/question/19219426

#SPJ3

4. A person is earning P600 per day to do a certain job. Express the total salary
S as a function of the number n of days that the person works.​

Answers

Answer: S = P600 × n

Step-by-step explanation:

Amount earned per day = P600

Number of days used = n

The total salary s, will be the value of p600 multiplied by n. This will be:

= P600 × n

Therefore, the function regarding the total salary, s will be: P600 × n

Bonnie bought 5 pounds of apples for 8$. Don bought apples for $0.40 more per pound than Bonnie. How much did Dan spend per pound for his apples?

Answers

Bonnie paid 1.6$ per pound and Dan paid 2$ per pound
So the answer is 2$

-95=14x-7+30x

plz show work ty :)

Answers

Answer:

x = -2

Step-by-step explanation:

-95= 14x - 7 + 30x (collect like terms)

-95 = 44x - 7 (add 7 on each side)

-88 = 44x (divide by 44 on each side)

-2 = x

-95= 14x-7+30

-95= 14x+23
-23= 14x

-118=14x
X=8.42

HELP PLZ RN<3
which graph displays a rate of change of 2.5?

Answers

Answer:

The second graph.

Step-by-step explanation:

The first graph has a negative slope, so that can't be the right answer.

The last graph isn't steep enough to show a rate of 2.5.

This leaves us with the middle graph which is correct.

I need help with this

Answers

Answer:

B

Step-by-step explanation:

(x + y + z = 3
-y = x
2z + 3y = 0
What does x and y equal?

Answers

Answer:

x=2 and y=-2

Step-by-step explanation:

Sue wants to put a rectangular garden on her property using 88 meters of fencing. There is a river that runs through her property so she decides to increase the size of the garden by using the river as one side of the rectangle. (Fencing is then needed only on the other three sides.) Let x represent the length of the side of the rectangle along the river. Express the garden's area as a function of x. what is the largest area that can be enclosed?

Answers

Answer:

Area = 44x - x²/2

Step-by-step explanation:

Given that:

Meter of fencing = 88m

Length of side of rectangle along the river = x

Only one more length is needed since river as been used as one side length of the fence.

Length = x

Width of rectangle = y = 2y (for both sides)

Hence ;

x + 2y = 88 meters

Expressing in terms of y

2y = 88 - x

y = (88 - x) / 2

y = 44 - x/2

Area of rectangle = Length * width

Area = x * y

Area = x * (44 - x/2)

Area = 44x - x²/2

Maximum. Area :

Perimeter = 4s

88 = 4s

s = 88/4 = 22

x = 2(22) = 44 = Length ; y = 22 = width

Maximum area = (22 * 44) = 968m²

simplify.show work
(3·9-3²)-10


thanks please show work

Answers

Answer:

8

Step-by-step explanation:

We will use a variety of elementary arithmetic skills to evaluate this expression.

The order of operations goes as follows:

P-Parentheses

E-Exponents

M-Multiplication

D-Division

A-Addition

S-Subtraction

For M and D, they are to be done left to right. Same with A and S. Now, we will apply this to our expression.

[tex](3*9-3^2)-10\\(3*9-9)-10\\(27-9)-10\\18-10\\8[/tex]

Can anybody please help me out with this question please I would really appreciate it so much. please and thank you .

Answers

Answer:

∠ BAF = 140°

Step-by-step explanation:

Since BD is a tangent to the circle at point B , then

∠ ABD = 90°

The exterior angle of a circle is equal to the sum of the 2 opposite interior angles.

∠ BAF is an exterior angle, thus

∠ BAF = ∠ ABD + ∠ BDA = 90° + 50° = 140°

I agree with the person above

ok so i was walking with my computer and fell in a hole and i cant get out what do i do HELP ME

Answers

First you go on the computer and you know how there's always a FBI agent watching you? You tell the FBI agent that your stuck in a hole and you need help. Then the FBI agent will send their team to come and get you but it won't be so easy because why? The little old lady you ran over decided to get revenge and set up a trap. so now it's the FBI vs The little old lady

the FBI starts to shoot at the Old Lady but she moves so fast she like lighting then she goes to attack the FBI agent but then the FBI agent reveals himself as the her grandson! Apparently he was able to get away and survive her attack since this caught the old lady off guard the grandson smashes cookies into her face and help you out of the hole

your welcome

Answer:

try to contact someone online if they are also the police department now has a online chat if you dont have a moblie device at hand

Step-by-step explanation:

What type of number is - v 81?

Answers

Answer:

rational

Step-by-step explanation:

How many 1/8's are in 1/2 inch?
A.
8.
B
6
c
4
D
3

Answers

Answer:

C

Step-by-step explanation:

C because 4/8 = 1/2................................

4.)
Given ZBAM is a right angle and mZBAM = 4x + 22,
determine the value of x. Enter the NUMBER only.
Do NOT put x = . It will mark it wrong.
Your answer
I

Answers

Answer:

17

Step-by-step explanation:

ZBAM= 90

90=4x+22

90 minus 22= 68

68=4x

68 divided by 4=17

If you buy a ticket in a certain lottery game, 30% of the players will get paid 1
$2,20% of the players will get paid $5, and 5% of the players will get paid
$25. All other players get paid nothing. What is the expected amount that a
player of this lottery game will get paid?

Answers

Answer:

most are expected to get nothing

Answer:

You're at a carnival and you see a game. For $2 you roll a standard six-sided die. If the number showing is a six you win $10, otherwise, you win nothing. If you're trying to make money, is it in your interest to play the game? To answer a question like this we need the concept of expected value

Step-by-step explanation:

Jessica had 167 dollars to spend on 6 books. After buying them she had 17 dollars. How much did each book cost ?

Answers

Answer:

6 $

Step-by-step explanation:

167$-17$=150$cost 6 books

150 $:6 =25$cost a book

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