A quadrilateral ABCD is drawn to circumscribe a circle, as shown in the given figure. Show that (AB + CD)/(AD + BC) = 1

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Theorem on Equal Length of Tangents from External Point | PadhAiPro

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TextTheorem on Equal Length of Tangents from External Point

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Prove that the parallelogram circumscribing a circle is a rhombus.

Prove that a rectangle circumscribing a circle is a square.

In the given figure, △ ABC circumscribes a circle. If AR = 3 cm, BP = 4 cm and QC = 5 cm, find the perimeter of △ ABC.

In the given figure, TP and TQ are two tangents. If ∠ PTQ = 50°, then find the measure of ∠ OPQ.

PQ and PR are tangents to the circle of radius 3 cm and centre O. If length of each tangent is 4 cm, then perimeter of △ OQP is :

PQ and PR are tangents to a circle with centre O such that OQ = QP. The value of ∠OPQ is equal to