CBSE Class 9 Answered
if a transversal intersects two parallel line and the interior angles so formed are ratio 2:3, the greater of two angles is: a)54 b)108 c)120 d)36
Asked by Prashanth Balasubramaniam | 02 Oct, 2012, 05:18: PM
Expert Answer
Let the interior angles formed by intersection of the transversal and the parallel lines be 2x and 3x
It is known that the sum of interior angles in the same side of a transversal formed by two parallel lines is 180 degree.
That is 2x + 3x = 180 degree.
Or, 5x = 180 degree
Or, x = 36 degree
Therefore, the greater of the two angles = 3 × 36 degree = 108 degree
Answered by | 03 Oct, 2012, 12:06: AM
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