Question

13) What affect does the size of the circle have on the measurement of an angle?

Answer 1

The full question please.

Answer 2

What's the definition of an angle, first?

Answer 3

(That should be the full question, @DominicNg )

Answer 4

the measure of an angle in radians is the measure of the arc for a given radius
one radian is the measure of the angle when the arc inscribed by the angle is the same as the radius

direct variation