Asked by Paul
Drawn in a circle whose radius is 14 cm, chord AB is 18 cm long. Calculate the angular
size of minor arc AB.
size of minor arc AB.
Answers
Answered by
Steve
Draw a diagram, where a radius bisects the chord. You will see that the arc is subtended by the angle θ, where
sin(θ/2) = 9/14
The arc length is then s = rθ
sin(θ/2) = 9/14
The arc length is then s = rθ
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