Question

A light shines through a window onto the floor. The window is 1.5m off the floor, and the window is 3m in length. How long is the spot on the floor?

Answer 1

Any ideas?

Answer 2

Isn't the size related to \[distance ^{2}\] ?

Answer 3

You need more information, perhaps the length or angle of the light hitting the floor. Otherwise, your answer will depend on the time of day.

Answer 4

^ I agree with the_kid.