Respuesta :

Sumin
Getting rid of the fraction will make the rest of the equation easier to solve. 
→ A = (1/2)bh 
→ 2 × A = 2 × (1/2)bh
⇒ 2A = bh
To solve for b, divide both sides by h:
2A/h = b
So, b = (2A)/h.
Hope this helps!