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08-02-2018
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At a horizontal distance of 43 meters from the base of a tower, the angle of elevation to the top is 70 degrees. Find the line of sight distance to the nearest meter.

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08-02-2018

I don't have a calculator with me right now but for this you need to remember SOH CAH TOA. So cos70 = 43m / H, in which case H is the hypotenuse (or line of sight). Next, you need to isolate the variable so you will multiply H to both sides, then divide cos70, giving you H = 43m / cos70. Plug this into your calculator to get the correct answer.

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