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 an
d C, as shown below
What is the distance between the walls?
Answer
50 m
70 m
100 m
110 m
What is the distance between the walls?
Answer
50 m
70 m
100 m
110 m
2 answers:
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Answer:
BC = 11
Step-by-step explanation:
using the sine ratio in the right triangle and the exact value
sin45° = , then
sin 45° = =
=
=
( cross- multiply )
BC = 11