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This diagram shows a semicircle with diameter MP
M
What is the approximate area of the shaded part?
OA. 33.8 cm²
OB. 235.3 cm²
O C. 102.7 cm²
OD. 36.3 cm²
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12 cm
13 cm
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5 cm
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Answers
Answer:
D 36.6
Step-by-step explanation:
Here, there is a triangle inscribed inside of a semicircle where the triangle is unshaded and the remained of the semicircle is shaded and we want to find the area of that shaded untouched area of the semicircle.
To do so we must find the area of the two shapes individually and then subtract the area of the triangle from the area of the semi circle as the triangle is what is uncovering the semicircle.
Finding the area of the semicircle
Area of a semicircle = (πr²)/2 where r = radius
Here we are given the diameter of the semicircle which is 13cm. We can easily convert the diameter to radius by dividing it by 2 as the radius is equal to half the diameter
Radius = 1/2 diameter , so radius = 13 / 2 = 6.5cm
We have A = πr²/2
==> plug in radius or r = 6.5
A = π(6.5)²/2
==> simplify exponent
A = π(42.25)/2
==> multiply π and 42.25 ( note that π = 3.14 approximately
A = 132.665/2
==> divide 132.665 by 2
A = 66.366
So the area of the semicircle is 66.366cm²
Finding the area of the triangle
The area of a triangle can be calculated by dividing the product of the base length and height ( formula = bh / 2 where b = base length and h = height )
Here the base length appears to be 5cm and the height appears to be 12cm so b = 5 and h = 12
So we have A = bh/2
==> plug in b = 5 and h = 12
A = (12)(5)/2
==> multiply 12 and 5
A = 60 / 2
==> divide 60 by 2
A = 30
So the area of the triangle is 30cm²
Subtracting the area of the triangle from the area of the semicircle
Finally to find the area of the shaded region we subtract the area of the triangle from the area of the semicircle
We have area of triangle = 30cm² and area of semicircle = 66.366
So area of shaded region = 66.366 - 30 = 36.366
D , 36.6 is closest to our answer therefore the answer is D
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Answers
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Step-by-step explanation:
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__
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URGENT! please answer. i'll give 5 stars + brainilest if correct
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Answers
Answer:
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Answer:
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Step-by-step explanation:
Details understood from the graph :
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Answers
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Answer:
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Answer:
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Step-by-step explanation:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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(image attached for reference)
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I hope this answer helpful. If you don’t understand ask me in comment.
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Step-by-step explanation:
Look at the image below.
3
2.2
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B. AA similarity postulate
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Answer:
x is (0,15), because when you place x as zero you'll the coordinate D when you plot these coordinates on your graph.
