Homework Help: math

Posted by donovan on Friday, July 27, 2012 at 4:54pm.

Richard is standing between two buildings in a town house development.The building on the left is 9 m away and the angle of elevation to its security spotlight A is 68 degrees. The building on the right is 6m away and the angle of elevation to its security spotlight B is 73 degrees which spotlight is farther away from ricchard and by how much ?

math - Reiny, Friday, July 27, 2012 at 9:18pm
I hope you made a sketch
For the left triangle
cos68° = 9/hypotenuse
hypotenuse = 9/cos68 = 24.03

Calculate the hypotenuse for the right triangle in the same way, then compare those lengths.

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