Answer:
h=2A/b
Explanation:
A=1/2bh
Isolate h by moving 1/2 and b to the other side of the equation.
Divide each side by 1/2,which is multiplying by 2, which gives you 2A=bh.Now divide each side by b, which gives you 2A/b=h. Turn it around.
2A/b=h becomes h=2A/b