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seraphim [82]
3 years ago
6

The angle of depression from D to F measures 40°. If DE = 100 m, find DF. Round your answer to the nearest tenth.

Mathematics
2 answers:
leva [86]3 years ago
7 0
You need to draw the triangle DEF with a right angle at E.  Angle D = 40 and DE = 100 m.  Once you have marked up your triangle, you can use cosine to find DF.  
sdas [7]3 years ago
3 0

The correct answer is 130.5


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