It is used in the construction of shapes
The instrument you are looking for is a compass
Compass is a scientific instrument used to locate directions,specifically north.
The instrument you are looking for is a compass
Compass
compass is an instrument that is used to find your way. by Azura Kristell Gacoin.
a compass and assrolabe
a compass i think
Compass
COMPASS
Beam Compass.
Compass
Geometrical compass To draw a perfect circle, and another compass for determining directions