if two interior angles of the same side of a transversal intersecting two parallel lines are in the ratio 2:3 , then the measure of smaller angles is what ??
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Let the angles be 2x and 3x
Now sum of interior angles on same side of transversal intersecting two parallel lines is 180
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⇒2x+3x=180
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⇒5x=180
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⇒x=36
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So the angles are
2x=2×36
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=72
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3x=3×36
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=108
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So the smaller angle is 72
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