Answer: √3.
- A 1
- B √3
- C 1/√3
- D 2
Correct answer: B. √3
Explanation: tan 60° = sqrt(3). From the ratio in an equilateral triangle.
Unit circle with standard angles 0, 30, 45, 60, 90 degrees; at 45 degrees the point is (cos45, sin45) = (1/sqrt2, 1/sqrt2).
Concept context
Ratios, identities, and applications in triangles