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3 years ago

5

What is the area of this figure

2 answers:

notka56 [123]3 years ago

5 0

Answer

370.2 inches^2

Step-by-step explanation:

find the mass of the circle by taking the radius ( 9) square it and times it by pi then divide it by 2. Add that with the (27 times 18) divided by 2.

ivolga24 [154]3 years ago

3 0

Answer:

370.235 sq. inches

Step-by-step explanation:

Area of the figure is equal to the area of the triangle plus the area of the semicircle
The Area of the triangle = 1/2*base*height
The base on the bottom is clearly 27
The height is the same as the diameter of the circle, which is twice the radius, given to us as 9. Therefore, the diameter is 18.
Thus we get A(triangle) = 1/2*27*18 = 243
Now, the area of the semicircle = (pi*r^2)/2
The radius is given as 9, and we get, (pi*9^2)/2 = 127.235
The area of the figure is therefore, 243 + 127.235 = 370.235

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