Question

I need some help with these problems

Answer 1

calculate by yourself

Explanation:

use sin theorem

1.

`(s)/( \sin(60) ) = (12)/( \sin(30) )`

2.

`(s)/( \sin(90) ) = (4)/( \sin(30) )`

3.

`(s)/( \sin(60) ) = (10)/( \sin(90) )`