You need a compass, which is a navigational tool used to determine direction. The Hardy Boys often use a compass to help guide their way during their adventures.
compass
Compass compass compass
To draw circles you need to use a compass
A compass is a tool often used to determine directions. It works by pointing towards the Earth's magnetic North pole, providing a reference for North, South, East, and West.
A compass is the tool.
Most of the time, a tool called a "compass" is used to draw perfect circles. This compass is not to be mistaken with a directional compass.
A navigational tool with a needle is a compass because it helps you to navigate which is cosidered as a tool. A compass has a needle inside to point which way is north. There is your answer :)
a compass
A compass
You can draw a circle in assembly program by using a compass-like tool. Secure the tip of the compass and then rotate the compass tool so that it completes the circle.
A compass
A compass perhaps?