Class 7 · Mathematics · Ganita Prakash

7. A Tale of Three Intersecting Lines

Try question 1

The sum of the angles of a triangle is

Tap an answer to check.

Answer and explanation

Answer: B. 180°

This holds for every triangle.

Open this question →

Try question 2

Two angles of a triangle are 50° and 60°. The third angle is

Tap an answer to check.

Answer and explanation

Answer: B. 70°

180° − 110° = 70°.

Open this question →

Try question 3

Each angle of an equilateral triangle measures

Tap an answer to check.

Answer and explanation

Answer: B. 60°

180° ÷ 3 = 60°.

Open this question →