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1. The angle of depression of a submarine from another Navy ship is 28°. The submarine is 791 ft from the ship. About how deep is the submarine?

2. What is the length of a diagonal of a square with sides of length 4?

 May 7, 2021
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1     Sin = opp / hyp  = depth/distance

        sin 28 = depth / 791        take it from here !

 

2     Pythagorean theorem     4^2 + 4^2 = diag2

                       diag = sqrt ( 32)       take it frome here !

 May 7, 2021

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