Angles and Unit Angles

What is the measure of the angle? Options: $$90\degree$$ , $$180\degree$$ , $$45\degree$$ , $$120\degree$$

What is the approximate measure of the angle? Options: $$90\degree$$ , $$30\degree$$ , $$60\degree$$ , $$120\degree$$

What is the approximate measure of the angle? Options: $$90\degree$$ , $$30\degree$$ , $$60\degree$$ , $$120\degree$$

What is the approximate measure of the angle? Options: $$90\degree$$ , $$150\degree$$ , $$60\degree$$ , $$120\degree$$

What is the approximate measure of the angle? Options: $$90\degree$$ , $$10\degree$$ , $$60\degree$$ , $$30\degree$$

The circle below is divided into 10 equal parts.

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

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

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.

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.