Question
In Fig.2, a quadrilateral ABCD is drawn to circumscribe a circle, with centre O, in such away that the sides AB, BC, CD and DA touch the circle at the points P, Q, R and Srespectively. Prove that AB + CD = BC + DA.
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Question 2
In Figure 5, a triangle PQR is drawn to circumscribe a circle of radius 6 cm such that the segments QT and TR into which QR is divided by the point of contact T, are of lengths 12 cm and 9 cm respectively. If the area of , then find the lengths of sides PQ andPR. Question Text | In Fig.2, a quadrilateral ABCD is drawn to circumscribe a circle, with centre O, in such away that the sides AB, BC, CD and DA touch the circle at the points P, Q, R and Srespectively. Prove that AB + CD = BC + DA. |