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OpenStudy (anonymous):
The height of a cell phone tower, AB, is 200 feet. What is the distance, in feet, between the tip of the tower A and a point C on the ground?
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OpenStudy (anonymous):
OpenStudy (anonymous):
Am i using sin?
OpenStudy (apoorvk):
use trigo cos42= AB/AC
OpenStudy (apoorvk):
cos = base by/hyp --> here the angle is the vertical one, so the base to be taken is AB.
OpenStudy (anonymous):
2000 sec 45?
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OpenStudy (anonymous):
42*
OpenStudy (apoorvk):
'200'sec'42'
OpenStudy (anonymous):
oops and howcome i had to use the reciprocal on this 1?
OpenStudy (apoorvk):
reciprocal on this one? where? cos = 1//sec
OpenStudy (anonymous):
the reciprocal of cos is sec?
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