ratio of adjacent of a parallelograms is 3:2 find these angles (a) 108,72° (b) 72° , 48° (c) 108°, 162° (d) 105° , 70°
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Step-by-step explanation:
Let two adjacent angles A and B of ∥gm ABCD be 3x and 2x respectively.
Since the adjacent angles of a parallelogram are supplementary.
∠A+∠B=180
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⇒3x+2x=180
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⇒5x=180
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⇒x=
5
180
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=36
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∴∠3×36
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=108
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and, ∠B=2×36
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=72
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Since the opposite angles are equal in a parallelgram, therefore, ∠C=∠A=108
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and ∠D=∠B=72
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Hence, ∠A=108
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,∠B=72
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,∠C=108
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and ∠D=72
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