Question

What you Supposed to do

Answer 1

Explanation:

1) Visually it is apparent that the obtuse angle partitions off about 1/3 of the circle.

2) 1/3 of the circle would be 120 degrees.

3) 1/3 of the circle would be 120 degrees.

Answer 2

You can see that the section that contains the angle is exactly 1/3 of the circle. The answer to A is 1/3 because the circle is divided into 3 equal pieces. Now for B, since the total measure of a circle is 360°, divide that by 3 to get the measure for the given angle. 360 divided by 3 is 120, so the given angle is 120°