Answer:
B
Explanation:
diameter = hyp
hyp = (8^2 + 10^2)^1/2
area of semicricle = pi r^2 /2
= 82 pi
area of triangle = 1/2 bh
= 1/2 x 8 x 10
= 40
area of shaded = area of semicricle + area of triangle
= 297.3
the answer is B
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