interior angle
internal angle

They are used to file the surfaces of acute internal angles.

The internal angle of the square is 90 degrees so four squares at a point make a full 360 degrees.

A regular hendecagon has internal angles of 147.27 degree (angle)s.

Turn is used in complex dynamics for measure of external and internal angles.

The sum of the internal angles in a simple pentagon is 540 .

Every internal angle is less than or equal to 180 degrees.

All equilateral triangles are similar to each other, and have 60 degree internal angles.

Triangles can also be classified according to their internal angles, measured here in degrees.

"To the extent that the applications were approved by staff people, there may be an internal angle," he said.

The measure of each internal angle in a regular chiliagon is 179.64 .