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Question
In the given figure, M is the centre of the circle. Chords AB and CD are perpendicular to each other.
If ∠MAD = x and ∠BAC = y , Prove that : x = y
Solution
In the figure, M is the centre of the circle.
Chords AB and CD are perpendicular to each other at L.
∠MAD = x and ∠BAC = y
we have, ∠ABD =90° - y and ∠ABD = 90° - x [proved]
∴ 90° - x 90° - y
⇒ x = y
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