Question

Suggest a way to measure the distance between the sun and the moon.

Answer 1

The distance between the Sun and the Moon can be measured by using Pythagoras theorem when the Earth makes an angle of 90^∘ with the Sun and the Moon. We already know the distances from the Sun to the Earth and from the Earth to the Moon. However, these distances keep on changing due to the revolution of the Moon around the Earth and the revolution of the Earth around the Sun.