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What is the length of a 90 degree arc of a circle with the radius of 11 cm

What is the length of a 90 degree arc of a circle with the radius of 11 cm
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12 votes
What is the length of a 90 degree arc of a circle with the radius of 11 cm

asked
User Gfxmonk
by
8.3k points

1 Answer

4 votes
Answer: 17.28 cm

Explanation:

Angle (θ) = 90 degree
Radius (r) = 11 cm

Length of Arc = θ/360 * 2πr

Therefore,
= θ/360 * 2πr
= 90/360 * 2 * 22/7 * 11
= 1/4 * 2 * 22/7 * 11
= 1/2 * 22/7 * 11
= 11/7 * 11
= 121/7
=> 17.28

Length of Arc = 17.28 cm
answered
User Meks
by
8.1k points
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