Answer:
[tex] \huge \boxed{b = \frac{2A}{h}}[/tex]
Step-by-step explanation:
[tex]A = \frac{1}{2} bh \\ [/tex]
Multiply through by 2 to eliminate the fraction
That's
[tex]2A = 2 \times \frac{1}{2} bh \\ 2A = bh[/tex]
Divide both sides by h to make b stand alone
[tex] \frac{2A}{h} = \frac{bh}{h} \\ [/tex]
We have the final answer as
[tex]b = \frac{2A}{h} \\ [/tex]
Hope this helps you
