NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 6: Triangles - Problems and Solutions
Question 107

Question. 107

The measure of three angles of a triangle are in the ratio 5 : 3 : 1. Find the measures of these angles.

Answer:

The measures of the angles are 100°, 60°, 20°.

Detailed Answer with Explanation:

Let angles be 5x, 3x, 1x. Their sum = 180° ⇒ 9x = 180° ⇒ x = 20°. Thus angles are 100°, 60°, 20°.