Question

Find x.

A. 7 times the square root of 2
B. 7
C. 14
D. 7 times the square root of 3

Answer 1

C
you can show this either by pythagoras or trigonometry

Answer 2

using trigonometry:SOH CAH TOA
so \[\sin(45)=7\sqrt{2}/x\]
\[x=7\sqrt{2}/\sin(45)\]
x=14