math
posted by donovan on .
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 ?

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.