Question

Find the value of the variable. If your answer is not an integer, leave it in simplest radical form. Please help

Answer 1

X=9/
`√(2)`

Explanation:

by trigonometry

the right angle be A

The triangle be ABC

45 degree part be C

so applying sin 45=opp/hypo

sin 45=1/
`√(2)`

1/
`√(2)`=x/9

x=9/
`√(2)`