- 25/√3 m
- 25 m
- √3 m
- √3/25 m
- 25√3 m

Option 1 : 25/√3 m

**Given:**

The angle of elevation = 30°

Distance between point and base of building = 25 m

**Concept used:**

In a right-angled triangle

tanθ = perpendicular/base

**Calculation:**

Let the height of the building be ‘h’.

tanθ = perpendicular/base

⇒ tan30° = h/25

⇒ 1/√3 = h/25

⇒ h = 25/√3

**∴ The height of the building is 25/√3.**

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