Q18. The angle subtended by the Earth at the eye of an astronaut on the Moon is approximately 1 radian. If the radius of the Earth is 6400 km, what is the approximate distance between the Moon and the Earth?Mathematics — NUST Mock 5 — Question 18 of 200A. 12800 kmB. 6400 kmC. 3200 kmD. 21600 kmPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →