Question

An engineer is surveying a building with a device that is 5 feet above the ground. He is 50 feet from the building and is looking with an angle of elevation of 50°. How tall is the building?

PLEASE! I REALLY need help! I DO NOT get this at all--PLEASE SOLVE!

Answer 1

Do you know any Trig?

Answer 2

A tangent function is most appropriate here.

Answer 3

you can use tangent = opp/adj for this
you have this triangle and solve for x

Answer 4

Remember Sin is opp/adj. Sin(50 degrees) = x/50ft.

Solve for x and then remember to add the extra 5ft.

Answer 5

solve for x then add 5

Answer 6

use tan and make sure your calc is in degrees :)

Answer 7

I'm sorry use tangent. Not sin.

Answer 8

tan is opp/adj
sin is opp/hyp

so tan is appropriate for this

Answer 9

put this in your calculate tan(50)(50)

Answer 10

after you get that answer add 5 to it and thats your answer

Answer 11

make sure you're in degree mode.

Answer 12

Yes.

Answer 13

that should be right

Answer 14

Looks legit.