Question

The sum of two angles of a quadrilateral is 165º. The other two angles are in the ratio 2.3
Find these angles.







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Answer 1

Let the unknown angles be 2x and 3x

So,

165 + 2x + 3x = 360

5x = 360 - 165 = 195

x = 195 / 5 = 39

So,

The unknown angles are :

2 × 39 = 78 and 3 × 39 = 117