Class 10 Mathematics: Introduction to Trigonometry

This worksheet will help you practice the fundamental concepts of trigonometry, including trigonometric ratios for acute angles in a right-angled triangle.

Class 10CBSEMathematicseasyPractice

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Q1. In a right-angled triangle, if angle B is 90 degrees, and sin A = 3/5, what is the value of cos A?
- 3/5
- 4/5
- 5/3
- 5/4
Q2. If tan Θ = 1, then the value of Θ is:
- 0°
- 30°
- 45°
- 60°
Q3. Which of the following trigonometric ratios is defined as the ratio of the adjacent side to the hypotenuse in a right-angled triangle?
- sine
- cosine
- tangent
- cosecant
Q4. The value of sin 60° is __________.
Q5. If sin A = cos A, then the value of A is:
- 0°
- 30°
- 45°
- 60°

+ 5 more in the printable PDF.