Question

Can anybody help me on this please I will be giving 15 points..

Answer 1

Using the pythagorean theorem

`AC^2=AB^2+BC^2\\BC=√(AC^2-AB^2)\\BC=√(12^2-7^2)\\BC=√(144-49)\\BC=√(95)`

`sin A=(BC)/(AC)=(√(95) )/(12)\\A = sin^(-1)((√(95) )/(12))\\A = 54.31`

`A + C = 90\\C = 90-A\\C= 90- 54.31\\C = 35.69`