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two angles of a quadrilateral are right angles the other 2 angles are in the ratio 2:3,find the angles |
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Answer» Answer: 108° , 72° Step-by-step explanation: Here, two angles are right angles, it means their ANGLE measure is 90°( for each ). Ratio of other two angles is 2 : 3. Let those angles are 2a and 3A. As we know, SUM of all angles in a QUADRILATERAL is 360° ⇒ 90° + 90° + 2a + 3a = 360° ⇒ 180° + 5a = 360° ⇒ 5a = 360° - 180° ⇒ 5a = 180° ⇒ a = 36° Remaining angles are 2a = 2( 36° ) = 72° And, 3a = 3( 36° ) = 108° |
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