Question Paper
Class / Subject: Class 7 (ICSE) · Mathematics
Chapter: Chapter 14 — Chapter 14: Triangles (Including Types, Angle Properties and Construction)
Time Allowed: 32 minutes
Max Marks: 16
1. What is an equilateral triangle? [1]
(A) All sides equal
(B) Two sides equal
(C) No sides equal
(D) One right angle
2. What is an isosceles triangle? [1]
(A) Two sides equal
(B) All sides equal
(C) No sides equal
(D) One obtuse angle
3. What is a scalene triangle? [1]
(A) No sides equal
(B) All sides equal
(C) Two sides equal
(D) One right angle
4. What is the sum of angles in any triangle? [1]
(A) 180°
(B) 360°
(C) 90°
(D) 270°
5. What is a right triangle? [1]
(A) A triangle with one 90° angle
(B) A triangle with all equal angles
(C) A triangle with no angles
(D) A triangle with one obtuse angle
6. If two angles of a triangle are 50° and 60°, what is the third? [1]
(A) 70°
(B) 110°
(C) 60°
(D) 50°
7. What does SSS mean in triangle construction? [1]
(A) Side-Side-Side (three known sides)
(B) Sum-Sum-Sum
(C) Square-Square-Square
(D) Angle-Angle-Angle
8. Why learn about triangle classification? [1]
(A) To understand and construct triangles accurately
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is an equilateral triangle? [1]
(A) All sides equal
(B) Two sides equal
(C) No sides equal
(D) One right angle
10. What is an isosceles triangle? [1]
(A) Two sides equal
(B) All sides equal
(C) No sides equal
(D) One obtuse angle
11. What is a scalene triangle? [1]
(A) No sides equal
(B) All sides equal
(C) Two sides equal
(D) One right angle
12. What is the sum of angles in any triangle? [1]
(A) 180°
(B) 360°
(C) 90°
(D) 270°
13. What is a right triangle? [1]
(A) A triangle with one 90° angle
(B) A triangle with all equal angles
(C) A triangle with no angles
(D) A triangle with one obtuse angle
14. If two angles of a triangle are 50° and 60°, what is the third? [1]
(A) 70°
(B) 110°
(C) 60°
(D) 50°
15. What does SSS mean in triangle construction? [1]
(A) Side-Side-Side (three known sides)
(B) Sum-Sum-Sum
(C) Square-Square-Square
(D) Angle-Angle-Angle
16. Why learn about triangle classification? [1]
(A) To understand and construct triangles accurately
(B) No reason
(C) It's not useful
(D) Only for tests