Help with geometry problem

Mathematics
Tutor: None Selected Time limit: 1 Day

Nov 3rd, 2015

Thank you for the opportunity to help you with your question!

using the trigonometric functions 

sin A = opposite / hypotenuse = a / c

cos A = adjacent / hypotenuse = b / c

tan A = opposite / adjacent = a / b

In our question we have the hypotenuse and the side we are looking for(shadow length) we use , 

sin 75=opposite/150

make shadow length subject by multiplying by 150 on both sides to give us 

sin 75 * 150= shadow length

0.9659 *150= shadow lenght

shadow lenght= 144.88888 

Therefore, the correct answer is A 144.89 feet


Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 3rd, 2015

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