The radius of a circle is 1 kilometer. What is the length of a 90 degree arc?

asked Oct 4, 2021 135k views

3 votes

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4 votes

Answer:

The length or arc is calculated by:

pi x r x angle(deg)/180 = pi x 1 x 90/180 = 0.5 x pi = ~1.57 (km)

Witters answered Oct 6, 2021

9.0k points

3 votes

Answer:

1/2 pi on IXL

Ziggurism answered Oct 9, 2021

8.4k points

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