NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 6: Triangles - Problems and Solutions
Question 123

Question. 123

If the sides of a triangle are produced in an order, show that the sum of the exterior angles so formed is 360°.

Answer:

360°

Detailed Answer with Explanation:

Each exterior = 180° − interior. Sum of interiors = 180°. So total = 3 × 180 − 180 = 360°.