Question

What is cos (x)?

48/58

58/48

26/58

58/26

Answer 1

We have to calculate the length of the missing side.
Use the Pythagorean theorem:


`a^2+32^2=58^2\\\\a^2+1024=3364\ \ \ |-1024\\\\a^2=2340\to a=√(2340)\\\\a=√(36\cdot65)\\\\a=6√(65)`


`\cos x=(6√(65))/(58)=(3√(65))/(29)`

I think. Your answers to choice are wrong.