Question

Plzzz helpppppppppp meeeeeeeeeee

Answer 1

Answer: Choice A) about 69.53 m^2

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Work Shown:

A = area of the square

A = side*side

A = 18*18

A = 324 square meters

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B = area of the circle

B = pi*r^2

B = pi*9^2 ..... note that the radius is half the diameter

B = 81pi

B = 254.469004940773

B = 254.4690 square meters

I used the calculator's stored version of pi to compute that approximate value.

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C = area of shaded region

C = A - B

C = 324 - 254.4690

C = 69.531

C = 69.53 square meters

So that points us to choice A as the final answer.

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Side note: The shaded region is about C/A = (69.531)/(324) = 0.2146 = 21.46% of the square's area. So this is the approximate chances of landing in the shaded area if you randomly threw a dart.

Answer 2

254.47 m or B

Explanation:

First you find the area of the circle and then you subtract it from the area of the square to get your answer.

Hope it helps c: