Trigonometry Challenge: Evaluate Without Calculator (Sine, Cosine & Tangent)
Examples:
- sin 210° = −1/2
- cos 315° = √2/2
- tan 135° = −1
-
- sin 330° = −1/2
- cos 225° = −√2/2
Answer Key included.
A practice worksheet for mastering exact trigonometric values using reference angles and ASTC quadrant rules.
30 questions each on sin, cos, and tan
Angles between 0° and 540°
Questions designed to strengthen understanding of acute angle reduction, unit circle identities, and special angles (30°, 45°, 60°)
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£1.00