Answer:
72$
Step-by-step explanation:
8h
h=9
8*9=72$
Mabye try making the triangle a right triangle and use SohCahToa (sin, cos, tan) to figure out each angle?
So this first wants you to find where sin is √3/2 when θ is between π and 3π/2. θ would therefore be located at 2π/3.
Now plug in the value of θ for cosine:
cos (2π/3) = -1/2
And tangent:
tan (2π/3) = -√3/3