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Theorem of Equal Angles Subtended by Different Chords

20. In ABC, A...

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20. In ABC, AB = AC. If the interior circle ofABC touches the sides AB, BC and CA at D, E, F respectively. Prove that E bisects BC.

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Q. Let s denotes the semi – perimeter of a ∆ ABC, in which BC=a, CA=b and AB=c , if a circle touches the sides BC, CA , AB at D,E,F respectively prove that BD = s - b.

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Let s denotes the semi – perimeter of a ∆ ABC, in which BC=a, CA=b and AB=c , if a circle touches the sides BC, CA , AB at D,E,F respectively prove that BD = s - b.

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Theorem of Equal Angles Subtended by Different Chords

Standard IX Mathematics

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