Question

can someone help me i dont understand i am like on the verge of tears

Answer 1

,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.
What is the distance between the walls

Answer 2

this is trig, correct?

Answer 3

if it is u can use SohCahToa to find the base of each triangle and add them up.