__maths__>__Construction / Practical Geometry (basics)__>__Basic Shapes: Lines, Circles, Angles__### Constructing a circle and semi-circle

In this page, a short and to-the-point overview of constructing a circle and semi circle is provided.

*click on the content to continue..*

Which of the following help to construct a circle of radius `3`cm?

- a protractor
- a compass
- a compass

The answer is "a compass"

**Construction of a Circle** : Measure the radius in a compass and mark a circle from the center point.

Which of the following help to construct a semi-circle of radius `3`cm at point `A`?

- a protractor
- a compass
- a compass

The answer is "a compass"

**Constructing a Semicircle** : Measure the radius using a compass and mark the semicircle from the center point.

*slide-show version coming soon*