Question

This figure consists of a rectangle and a quarter circle.

What is the perimeter of this figure?

Use 3.14 for π .

Answer 1

Hello!

First you have to find the length of the side under the quarter circle

20 - 11 = 9
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Next you have to find the circumference of the quarter circle

You use the equation to find the circumference of a circle and divide the answer by 4

The equation is
`2 \pi r`

r is radius

Put in 3.14 for pi and the numbers you know

2 * 3.14 * 11 = 69.08

Divide this by 4

69.08 / 4 = 17.27
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Finally you add all the values you know

20 + 2 + 17.27 + 9 + 11 + 2 = 61.27cm
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The answer is 61.27cm

Hope this helps!