Question

The formula for the area of a triangle 1/2bh=a. which of the following is not a possible first step to rearrange this formula to find the base of the triangle?1/2h
A. multiply by 1/2
B. divide by 1/2
c. divide by h
D. divide by

Answer 1

Answer:

Option A.

Step-by-step explanation:

The formula for the area of a triangle is

$\frac{1}{2}bh=a$

Using this formula we need to find the formula for base of the triangle. It means we need to isolate the variable b on the left side.

So, first we can divide the given equation by $\frac{1}{2}$ or h or $\frac{1}{2}h$.

Divide the given equation by 1/2.

$\frac{\frac{1}{2}bh}{\frac{1}{2}}=\frac{a}{\frac{1}{2}}$

$bh=2a$

Divide both sides by h.

$\frac{bh}{h}=\frac{2a}{h}$

$b=\frac{2a}{h}$

So, the first possible step can be

(i) divide by 1/2

(ii) divide by h

(iii) divide by 1/2 h

Only the step multiply by 1/2 can not be the possible step to solve for b.

Therefore, the correct option is A.

Answer 2

Hi there!

The answer to this question is A - multiply by 1/2. This is because multiplying by 1/2 does not get rid of the 1/2 on that side, which is what we want to do.

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!