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In the Following Figures, O is the Centre of the Circle. Find the Values of A, B, C and D. - ICSE Class 10 - Mathematics

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Question

In the following figures, O is the centre of the circle. Find the values of a, b, c and d.

Solution

Here, ∠DAC = ∠CBD = 25°
(Angle subtended by the same chord on the circle are equal)

Again, 120°= b + 25°
(In a triangle, measure of exterior angle is equal to the sum of pair of opposite interior angles)
 ⇒ b = 95°

  Is there an error in this question or solution?
Solution In the Following Figures, O is the Centre of the Circle. Find the Values of A, B, C and D. Concept: Chord Properties - Chords Equidistant from the Center Are Equal (Without Proof).
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