Question Paper
Class / Subject: Class 9 (SSC) · Mathematics - Geometry (भूमिती)
Chapter: Chapter 8 — Chapter 8: Trigonometry
Time Allowed: 32 minutes
Max Marks: 16
1. What is sine (sin) in a right triangle? [1]
(A) Opposite/hypotenuse
(B) Adjacent/hypotenuse
(C) Opposite/adjacent
(D) Hypotenuse/opposite
2. What is cosine (cos) in a right triangle? [1]
(A) Adjacent/hypotenuse
(B) Opposite/hypotenuse
(C) Opposite/adjacent
(D) Hypotenuse/adjacent
3. What is tangent (tan) in a right triangle? [1]
(A) Opposite/adjacent
(B) Adjacent/hypotenuse
(C) Opposite/hypotenuse
(D) Hypotenuse/opposite
4. Do trigonometric ratios change with triangle size? [1]
(A) No, they remain constant for a given angle
(B) Yes, they always change
(C) Only sometimes
(D) Ratios don't apply to triangles
5. What are trigonometric ratios used for? [1]
(A) Calculating heights and distances
(B) Only decoration
(C) Nothing useful
(D) Only for counting
6. What field uses trigonometry practically? [1]
(A) Navigation and architecture
(B) No practical field uses it
(C) Only cooking
(D) Only painting
7. In a right triangle, what is the longest side called? [1]
(A) Hypotenuse
(B) Opposite side
(C) Adjacent side
(D) Base only
8. Why learn trigonometry? [1]
(A) For practical height and distance calculations
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is sine (sin) in a right triangle? [1]
(A) Opposite/hypotenuse
(B) Adjacent/hypotenuse
(C) Opposite/adjacent
(D) Hypotenuse/opposite
10. What is cosine (cos) in a right triangle? [1]
(A) Adjacent/hypotenuse
(B) Opposite/hypotenuse
(C) Opposite/adjacent
(D) Hypotenuse/adjacent
11. What is tangent (tan) in a right triangle? [1]
(A) Opposite/adjacent
(B) Adjacent/hypotenuse
(C) Opposite/hypotenuse
(D) Hypotenuse/opposite
12. Do trigonometric ratios change with triangle size? [1]
(A) No, they remain constant for a given angle
(B) Yes, they always change
(C) Only sometimes
(D) Ratios don't apply to triangles
13. What are trigonometric ratios used for? [1]
(A) Calculating heights and distances
(B) Only decoration
(C) Nothing useful
(D) Only for counting
14. What field uses trigonometry practically? [1]
(A) Navigation and architecture
(B) No practical field uses it
(C) Only cooking
(D) Only painting
15. In a right triangle, what is the longest side called? [1]
(A) Hypotenuse
(B) Opposite side
(C) Adjacent side
(D) Base only
16. Why learn trigonometry? [1]
(A) For practical height and distance calculations
(B) No reason
(C) It's not useful
(D) Only for tests