If two parallel lines are intersected by a transversal, then interior , angles on the same side of the transversal are 

Supplement of an angle is one fourth of itself.The measure of the angle is

If ∠A + ∠B = 180^o, then ∠A and ∠B are __________ angles.

Angles of a triangle are in the ratio 3 : 4 : 2. The smallest angle is.

The supplement of an angle is one third of itself.The measure of the angle is

If one of the angles of a triangle is 72^o and the difference of other two angles is 12^o.Find the other two angles?

In figure if l || m and l is a transversal , determine x.

Lines AB and CD intersect at O. If ∠AOC = (3x - 10 )^o and ∠BOD = (20 - 2x )^o , find the value of x .

An angle is 60^o more than half its complementary angle.The measure of the angle is

In ΔABC, ∠A : ∠B : ∠C = 2 : 3 : 5 , then interior angle at B is