Please help, will medal and fan.

Question

anonymous · Answer

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:

anonymous · Answer

What is the distance between the walls?

 110.90 m

 149.28 m

 103.92 m

 173.20 m

anonymous · Answer

the distance between the laser source and the wall on the right is $40\sqrt3$  as the triangle on the right is 30- 60- 90 with short side $40$

anonymous · Answer

similarly the distance between the laser source and the wall on the left is $$\frac{60}{\sqrt3}$$

natsent06 · Answer

satellite fan me plz need to send messge

anonymous · Answer

that is a really lousy picture of a 60 degree angle btw

anonymous · Answer

in any case your answer is 
$$\frac{60}{\sqrt3}+40\sqrt3$$ or whatever your calculator says that is

anonymous · Answer

Ohhh okay. That makes sense now. Thanks :)