Question

Find the value of x.

A. 5√6
B. 10√2
C. 5√2
D. 5
E. 10

Answer 1

x = 10

Explanation:

cos 45 = 5
`√(2)` / x

x = 5
`√(2)` / cos 45, cos 45 =
`√(2)` / 2

x = 10