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Question

Two parallel lines l and m are cut by a transversal t. If the interior angles on the same side of the transversal t be 2x9 and 3x7 . Find the measure of each angle.

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Solution

Given (2x9) and (3x7) are interior angles of the same side of the transversal .

we know that, sum of interior angles of same side of the
transversal =180

2x9+3x7=180

5x16=180

5x=180+16

5x=196

x=1965

x=39.2

Therefore, 2x9=(2×39.2)9
=78.49
=69.4
3x7=(3×39.2)7
=117.67
=110.6
Hence, measure of each angle is 69.4 and 110.6


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