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To determine the distance across a river...


To determine the distance across a river, as shown in the figure above, a surveyor marked two points on one riverbank, H and F, 65 meters apart. She also marked one point, K, on the opposite bank such that `overline(KH)|_overline(HF)`. If `angleK=54^(@)` and x is the width of the river, which of the following equations could be used to find x?

A

`tan54^(@)=(x)/(65)`

B

`Sin36^(@)=(x)/(65)`

C

`tan36^(@)=(x)/(65)`

D

`sin54^(@)=(x)/(65)`

Text Solution

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The correct Answer is:
C
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