In order to derive the base of a triangle from its area, you need its height as well.
In fact, if we solve the area formula for the base, we have

So, the base length would be

where h is the height relative to the base you're interested in.
Answer:

Step-by-step explanation:
<u>Step 1: Set the second equation into the first
</u>




<u>Step 2: Solve the second equation
</u>


Answer: 
It is called Ecological Succesion hope that helped:)
we know that
if the lines a and b are parallel lines cut by transversal f
then
--------> by alternate exterior angles
solve for x

therefore
<u>the answer is</u>
the value of x is 
Answer:
Nevermind im sorry because there's a vertex that isn't a whole number and i dont know how to do that, but the first ones are 6,8 and -6, 3 for the vertexes of the pre image, I dont know how to do the other one. For the other image, one is 9, 7 and the other one is -3, 2. Again, I don't know how to do the other ones but I hope these at least help