__maths__>__Construction / Practical Geometry (basics)__>__Standard angles Using Campus__### Constructing `60^@` angle using Compass

In this page, a short and to-the-point overview of constructing `60^@` angle using a compass is provided.

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Which of the following geometrical properties help to construct `60^@` angle using a compass?

- An angle in isosceles triangle is `60^@`
- Angles in an equilateral triangle are `60^@`
- Angles in an equilateral triangle are `60^@`

The answer is "Angles in a equilateral triangle are `60^@`"

To construct an angle measuring `60^@` at point `A` on line `bar(AB)`, construct a equilateral triangle as given below. • With an arbitrary distance measure on compass, mark point `P` from point `A` on line `bar(AB)`.

• With the same distance measure on compass, construct two arcs from points `A` and `P`. The arcs cut at point `Q`.

Since the distance measure on compass is identical, points `A`, `P`, and `Q` make an equilateral triangle. The line `bar(AQ)` is extended and `/_PAQ` is `60^@`

**Constructing `60^@` angle using a Compass** : Construct an equilateral triangle and the angle `60^@` is constructed at the vertex.

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