Q. 3 A5.0( 2 Votes )

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Answer :

The figure of the question is given below:


Given that MPN = 60°


The above figure represents a quadrilateral PNQM


So, the sum of all angles of a quadrilateral is 360°


MQN + QNP + MPN + PMQ = 360° .. eq(1)


Since PM is MQ and PN is QN


QNP = PMQ = 90°


By substituting all angles in eqn (1)


MQN + 90° + 60° + 90° = 360°


MQN = 120°


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