The moon's angular diameter in our sky as observed from Earth is measured to be 0.5°. From this, we can find the diameter of the moon in kilometers if we also know the moon's
A) distance from the Earth.
B) element composition
C) distance from the sun.

Question

Quizplus · Accepted Answer

To find the diameter of the moon in kilometers, we need to know its distance from Earth. With the moon's angular diameter and its distance from Earth, we can use trigonometry to calculate its actual diameter. Knowing the moon's element composition or its distance from the sun is not relevant to finding its diameter in kilometers.

The Moon's Angular Diameter in Our Sky as Observed from Earth