Question Paper
Class / Subject: Class 7 (CBSE) · Mathematics
Chapter: Chapter 7 — Chapter 7: A Tale of Three Intersecting Lines
Time Allowed: 15 minutes
Max Marks: 6
1. The sum of angles in a triangle is: [1]
(A) 180°
(B) 360°
(C) 90°
(D) 270°
2. If two angles of a triangle are 50° and 60°, the third angle is: [1]
(A) 70°
(B) 60°
(C) 80°
(D) 110°
3. Tearing a paper triangle's corners and arranging them together forms: [1]
(A) a straight line (180°)
(B) a full circle (360°)
(C) a right angle (90°)
(D) no pattern
4. An exterior angle of a triangle equals the sum of: [1]
(A) the two opposite interior angles
(B) all three interior angles
(C) only one interior angle
(D) the adjacent interior angle only
5. Find the exterior angle if the two opposite interior angles are 40° and 70°: [1]
(A) 110°
(B) 70°
(C) 40°
(D) 180°
6. An interior angle and its adjacent exterior angle at the same vertex always sum to: [1]
(A) 180°
(B) 90°
(C) 360°
(D) 270°