Trigonometry (10 Maths)
Trigonometry is the study of relationships between sides and angles in triangles and has numerous applications in navigation, surveying, and engineering. U
TL;DR: Trigonometry is the study of relationships between sides and angles in triangles and has numerous applications in navigation, surveying, and engineeri…
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Trigonometry is the study of relationships between sides and angles in triangles and has numerous applications in navigation, surveying, and engineering. U
Trigonometry MCQs with Answers & Explanations
Q1. In a right-angled triangle, sin A =
- Hypotenuse / Opposite
- Opposite / Hypotenuse ✓ (correct)
- Adjacent / Hypotenuse
- Opposite / Adjacent
Q2. If sin A = 3/5 and angle A is acute, then cos A =
- 4/5 ✓ (correct)
- 3/4
- 5/4
- 5/3
Q3. The value of sin 0 degrees is:
- 0 ✓ (correct)
- 1
- 1/2
- -1
Q4. tan A = cot A when A =
- 30 degrees
- 45 degrees ✓ (correct)
- 60 degrees
- 90 degrees
Q5. If sin A = cos B and A and B are acute angles, then A + B =
- 90 degrees ✓ (correct)
- 180 degrees
- 45 degrees
- 60 degrees
Q6. The value of sec 60 degrees is:
- sqrt(2)
- 2 ✓ (correct)
- 2/sqrt(3)
- sqrt(3)/2
Q7. If tan A = 1/sqrt(3), then A =
- 30 degrees ✓ (correct)
- 45 degrees
- 60 degrees
- 90 degrees
Q8. sin^2 A + cos^2 A =
- 0
- 1 ✓ (correct)
- 2
- -1
Q9. If a ladder of length 10 m leans against a wall making 60 degrees with the ground, the height at which it touches the wall is:
- 5 m
- 5sqrt(3) m ✓ (correct)
- 10sqrt(3) m
- 10 m
Q10. The angle of elevation from a point on the ground to the top of a 20 m building is 30 degrees. The distance from the point to the base of the building is:
- 10 m
- 20sqrt(3) m ✓ (correct)
- 40/sqrt(3) m
- 10sqrt(3) m
Frequently Asked Questions
What are the complementary angles in trigonometry?
Two angles are complementary if their sum is 90 degrees, and sin A = cos(90 - A) and cos A = sin(90 - A).
How are trigonometric ratios used in solving real-world problems?
Trigonometric ratios are used in problems involving angles of elevation, angles of depression, and heights and distances.
More 10 Maths MCQs
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