Question no 4

Question no 4 AD L BOI-cr; thangk ABC. right angled at C, P and Q are CA CY divide sides in the ratio 2 l. Prove hat • 4bC2 (iO 9BP2 4AC2 adjoining figure, APQR is right angled at Q and S and T side QR Prove that 8 PT2 = 3PR2 5152. In a quadrilateral ABCD, LB — - 900. If AD2 ZACD 90'. AB2 + BO O, prove adjoining figure, find the length Of AD in term'

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