2. what is the least common denominator for adding the fractions
, and ?
40
b. 120
c. 180
d.480

Asource 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?

Triangles abd and ace are similar right triangles. witch ratio best explains why the slope of ab is the same as the slope of ac?

What’s the answer? and how do i solve it ?