Question

1 point

What is the area of the shaded region in the figure shown? Use 3.14 for pi
and round your answer to the nearest tenth. *
4.3 cm
8 cm
10 cm
18.6 cm squared
21.9 cm squared
61.5 cm squared
65.5 cm squared

Answer 1

well, what we do is, simply get the area of the containing rectangle, is an 8x10, and then get the area of the circle, with a radius of half of 4.3 or r = 2.15, and then if we subtract the area of the circle from the rectangle's, what's leftover is the shaded part.

`\stackrel{\textit{\large Areas}}{\stackrel{rectangle's}{(8\cdot 10)}~~-~~\stackrel{circle's}{[\pi (2.15)^2]}}\implies 80-4.6225\pi ~~\approx~~65.5`