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
(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
+ BO O, prove
adjoining figure, find the length Of AD in term'