this is an MCQ :
if two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 2 : 3 , then the smaller of two angles is :
1) 72 degrees 2) 108 degrees 3) 54 degrees 4) 36 degrees
let the angles be 2x and 3x , Now
2x + 3x = 5x
5x = 180 ( since interior angles on the same side of a transversal = 180 degrees )
x = 180/5
x = 36
smaller angle is 2x = 2 * 36 = 72
the answer izz 1) 72