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Pair Of Linear Equations In Two Variables

Question 8:

ABCD is a cyclic quadrilateral finds the angles of the cyclic quadrilateral.

Answer:

We know that the sum of the measures of opposite angles in a cyclic quadrilateral is 180°.

Therefore, ∠A + ∠C = 180

4y + 20 − 4x = 180

− 4x + 4y = 160

xy = − 40 (i)

Also, ∠B + ∠D = 180

3y − 5 − 7x + 5 = 180

− 7x + 3y = 180 (i...

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