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Conditions for Similarity of Triangles, Theorem on Tangent Perpendicular to Radius at Point of Contact | PadhAiPro

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TextConditions for Similarity of TrianglesTheorem on Tangent Perpendicular to Radius at Point of ContactCBSE PYQ

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Prove that the tangents drawn at the ends of a diameter of a circle are parallel.

TextDefinition of Tangent to a CircleTheorem on Tangent Perpendicular to Radius at Point of ContactDefinition of Tangent to a CircleTheorem on Tangent Perpendicular to Radius at Point of Contact

Which of the following is not the criterion for similarity of triangles ?

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In the given figure, if AB is a tangent to the circle with centre O such that OB = 6 cm and ∠AOB = 60°, then the length of OA is :

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In the given figure, TP and TQ are tangents at points P and Q of the circle respectively. If reflex ∠ POQ = 250°, find the measure of each angle of quadrilateral POQT.

TextTheorem on Tangent Perpendicular to Radius at Point of Contact

Which types of triangles are always similar ?

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In the given figure, a circle is inscribed in a quadrilateral ABCD which touches the sides AB, BC, CD and DA at P, Q, R and S respectively. Prove that ∠ AOB + ∠ COD = 180°.

TextTheorem on Tangent Perpendicular to Radius at Point of Contact