Question:
The angles of a quadrilateral are in the ratio 2: 4 : 5 : 7. Find the angles.
Solution:
Let
Then
Since the sum of the angles of a quadrilateral is 360o, we have:
2x + 4x + 5x + 7x = 360∘
⇒ 18 x = 360∘
⇒ x = 20∘
∴
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