the ratio of two supplementary angles is 2:7. what is the measure of the smaller angle

Answer 1

Supplementary angles are angles that add up to 180°.
So if the ratio of the two angles are 2:7, or 2x : 7x, then we have
2x+7x=180
Solve for x and evaluate 2x and 7x to get the measure of the angles.

Answer 2

In a right angled triangle two smaller triangles in the ratio 2:7.compute these angles.