The Sun and the Moon have the same angular size. If the Sun is 400 times farther away from the Moon, the Sun must be ____ times the size of the Moon.
A) 400
B) 1/400
C) 1/4
D) 4
E) 4?

Question

Quizplus · Accepted Answer

The angular size of an object is inversely proportional to its distance. Since the Sun is 400 times farther away from the Moon, it must be 400 times larger to have the same angular size.

The Sun and the Moon Have the Same Angular Size