Question

Find x in this 45°-45°-90° triangle. 12 X M 1 2 3 4 5 6 7 8 9 8197P

Answer 1

We can use the following identity:

`\sin 45=(x)/(12)`

Solving for x we got:

`x=12\cdot\sin 45=12\cdot\frac{\sqrt[]{2}}{2}=6\sqrt[]{2}=\sqrt[]{72}`