From the definition of sin(a) you can find that h=csin(a) .
have to make these to formulas equal each other
Area of a triangle= 1/2 bc sinA
Area of a triangle= 1/2 bh
i figures out one step:
Make both equations equal each other::: 1/2 bh = 1/2 bc sinA
i have to figure out how to break it down to prove they are equal....