Find the length of the circle if its diameter is 35 cm.

univerkov | March 19, 2021 | education

Here we just need to use classic formulas.
First, the diameter of the circle is equal to two radii (r * 2).
Secondly, the length of the circle – l – is calculated as follows:
l = r * 2 * pi

So:
D = r * 2 = 35, so
1) l = 35 * pi
Round pi to tenths and get:
2) 35 * 3.1 = 108.5 (cm)

Answer: 108.5 centimeters

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