find the length of arc whose radius is 10.5cm and central angle is 36
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Arc length is
= (θ/360°) ⋅ 2πr
Substitute r = 10.5 and θ = 36° and π ≈ 3.14.
≈ (36°/360°) ⋅ 2 ⋅ (3.14) ⋅ 10.5
= (1/10) ⋅ 65.94
= 6.59
So, the length of the arc is about 6.59 cm.
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