Help. I have to angles and a side how do I do this Angle 1: 90 degrees Angle 2: 63 degrees Side 1: 5 mm

Question

so I know angles need to add up to 180 so 90 +63=153 180-153=27 so the angle is 27
How do I figure out the sides? I have 5mm to start I am really confused.

Answer 1

the Law of Sines says that the length of the sides is the same ratio as the sines of the angles opposite the sides

angle 1 is 90º ... sine is 1

sin(angle 2) / 1 = side 2 / 5 mm

do the same with angle 3 and side 3

Answer 2

Not getting it how do you get 1 for 90 degrees and so on I am lost