Answer: 17.28 cm
Step-by-Step 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
