A surveyor has taken the measurements shown in the figure. Find c, the distance across the lake, to the nearest tenth of a foot. 900 ft 800 ft 70° feet

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ISBN:9780470458365
Author:Erwin Kreyszig
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Hello, I don't understand the equation may someone help me out, may you also write the work and answer legibly or type it out if possible please ?please HIGHLIGHT the answer and double check if its correct please ?
A surveyor has taken the measurements shown in the figure. Find c, the distance across the lake, to the nearest
tenth of a foot.
900 ft
800 ft
70°
feet
Transcribed Image Text:A surveyor has taken the measurements shown in the figure. Find c, the distance across the lake, to the nearest tenth of a foot. 900 ft 800 ft 70° feet
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