Q7 of 53 Page 153

In ΔPQR m∠Q = 90, PQ = x, QR = y and . D . Find PD, QD, RD in terms of x and y.

mQ = 90


Applying Pythagoras theorem


PR = √(x2 + y2)


PQ2 = PD × PR




QR2 = RD × PR




QD2 = PD × RD


⇒ QD2



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