Answer: h=2a/3b
Step-by-step explanation:
A=1/2(b+b+b)h
Switch sides
1/2(b+b+b)h)=a
Simplify
1/2 (3b)(h)=a
3/2bh=a
Divide by 2
3bh/2=A/2
3bh=2a
Divide 3b both sides
3bh/3=2a/3
Solve for h
H= 2a/3b