This week in pre-calculus we started our unit on trigonometry. We learned about Sine Law, it’s an equation on how to find the sides and the angles in a triangle all put into one instead of having to use separate equations to solve. If we’re solving for a side of the triangle we’ll use the ratio .

If we want to solve for the angle then we reciprocate the ratio and it’ll be .

To solve for side “a” then we’ll use the first equation.

ex/

once we rearrange and cross multiply we’ll get