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:

A source of laser light is at point A on the ground between two parallel walls. The walls are perpendicular to the ground. AB i

What is the distance between the walls? (1 point)

a
80 m

b
180 m

c
90 m

d
100 m

Answer 1

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