Respuesta :

Step-by-step explanation:

Hey there!

Given;

[A = 1/2b*h]

Divide both sides by 'h'.

A/h = 1/2(b*h/h) [ on right side'h' gets cancelled].

Multiply '2' and 'A'.

A*2/h = b

b = 2A/h.

Hope it helps...

Answer:

[tex] \frac{2a}{h} = b[/tex]

Step-by-step explanation:

The formula for the area of a triangle is:

[tex]a = \frac{1}{2} (bh)[/tex]

to solve for b, multiply both sides by 2...

[tex]2a = bh[/tex]

then divide both sides by h...

[tex] \frac{2a}{h} = b[/tex]