Question

Please help find X thank you

Answer 1

x = 7.15

Explanation:

Start off by solving for the missing angle:

180° - 51° - 90° = 39°

Now knowing this angle, we can use the Law of Sines to solve for x.

sin(90°)/x= sin(39°)/4.5

Isolate x.

x = sin(90°)*4.5/sin(39°) ≈ 7.15

P.S. This is just my way of solving for x, be open-minded to other ways to solve for x.