Question

A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B and C, as shown below.(WILL GIVE MEDAL)

Answer 1

What is the distance between the walls?

110.90 m

149.28 m

103.92 m

173.20 m

Answer 2

do you see that the top left angle is 30, and top right angle is 60?

Answer 3

Lets work these triangles separately.