Angles in shapes

The sum of interior angles in a triangle is 180Β°. If the side of a triangle is extended, an angle is created outside the triangle called an exterior angle.

A square has 4 interior angles, all of equal size 90Β°.

The sum of interior angles in a polygon can be found by dividing the polygon into a number of triangles.

The exterior angles of a polygon can be found by extending the sides of the polygon to form an angle outside the shape.

#0

Loading ...

#0

Loading ...

Enjoy using the resources? Log it to view 50% more questions in full screen.

StudySquare