The Moon has an angular diameter of 0.5°. What is the Moon's angular diameter in minutes of arc
A)0.5
B)30
C)50
D)1800
E)60.5

Question

Quizplus · Accepted Answer

There are 60 arcminutes in one degree, so to convert the Moon's angular diameter from degrees to arcminutes, we multiply by 60:
0.5° x 60 arcminutes/degree = 30 arcminutes. 
Therefore, the Moon's angular diameter is 30 arcminutes or B in the given answer choices.

The Moon Has an Angular Diameter of 0