From the figure above, find the length of Chord PQ
Length of a chord = 2rSin θ2\;\frac{θ}{2}2θ
θθθ = 60º not 30º and radius = 9cm
Therefore, Length of the chord = 2 x 9 Sin 60∘2\;\frac{60^{\circ}}{2}260∘ = 2 x 9 x Sin 30º = 2 x 9 x 12\;\frac{1}{2}21 = 9cm.
