how to find interior angle in a quadrilateral where measures of other angles are given?
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Answer:
By angle sum property of a quadrilateral,
sum of all the interior angles=360
∘
Let x be the fourth angle.
∴48
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+85
∘
+140
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+x=360
∘
∴x=360
∘
−273
∘
=87
∘
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