The equation for finding the area of a trapezoid is a=1/2(b1 + b2)h ; solve for h. btw the answer is not D. Also please show work. thanks.

Hey there!!
Equation given : A = 1/2(b₁+b₂)h
Solve for h
First, let us divide by 1/2 on both sides
(A) / (1/2) = ( 1/2(b₁+b₂)h ) / ( 1/2 )
2A = (b₁+b₂)h
Divide by (b₁+b₂) on both sides
2A / b₁+b₂ = h
Hence, the option is ( B )
Hope it helps!