Question

Can someone help me and explain

Answer 1

20.56 in

Explanation:

The perimeter is the length of the outside of the figure.

This consists of 2 semicircles and 2 straight parts of 4 in

The 2 semicircles can be thought of as 1 circle with circumference

C = 2πr ( r is the radius )

Here diameter = 4 so r = 4 ÷ 2 = 2, then

C = 2 × 3.14 × 2 = 4 × 3.14 = 12.56 in

Thus

perimeter = 12.56 + 4 + 4 = 12.56 + 8 = 20.56 in

Answer 2

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