MathematicsCLASS 10CBSE
answered 19 May 2026Is tan 30 equal to 1?
A.VERIFIED ANSWERfact-checked by tutors
No. tan 45° = 1 (not tan 30°). Quick reference:
| Angle | tan value |
|---|---|
| 0° | 0 |
| 30° | 1/√3 ≈ 0.577 |
| 45° | 1 |
| 60° | √3 ≈ 1.732 |
| 90° | undefined |
Point: tan 30° = 1/√3 ≈ 0.577. It is less than 1. Only tan 45° equals exactly 1.