An arc of a circle radius 7cm is 14cm long. What angle do...
An arc of a circle radius 7cm is 14cm long. What angle does the arc subtend at the center of circle?
[Take π = 22/7]
25.7o
44o
51.43o
98o
114.55o
Correct answer is E
L = 14cm, r = 7cm; θ= ?
L = θ360 x 2πr
14= θ360 x 2π(7)
θ=360×1444
=114.55°
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