How to measure an angle. Part of Mathematics and Numeracy Shape and space. ... With a protractor, the angles of any shape can found where two lines meet and form a corner.

If you’re doing something like setting posts on a slanted surface, you’ll likely need to measure the exact angle at which to cut their base so that they stand perpendicular with the ground.

A protractor acts in a similar way to a ruler in that it allows you to both measure and draw accurately. The two most popular types are the semi-circular (0-180 degrees - pictured above ) and a ...