Mathematics, 18.05.2021 19:10 mahmed78
10
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:
60 m
40 m
60A 45°
Wall
Laser Source
Wall
What is the distance between the walls?
ОА.
80 m
ОВ.
140 m
O C.
70 m
Answers: 2
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A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays...
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