Angles and Unit Angles

Front

Back

Front

Back

Front

Back

Front

Back

Front

Back

Front

The circle below is divided into 10 equal parts.

What is the measure of the angle shown by the shaded section?

Back

36°

Front

Measure of each of the eight angles in the center of the pattern where 1/8 of the circle is in each triangle.

Back

45 degrees

Front

Measure of each of the four angles in the center of the pattern where four identical squares meet, with 1/4 of a circle in each square.

Back

90 degrees

Front

Measure of each of the six angles in the center of a pattern formed by six identical triangles, where 1/6 of a circle is in each triangle.

Back

60 degrees