How do you find the unknown side if you have the area and the other side?

if you have the area (i'm assuming this is a square or rectangle) and one side, you can use division to find the other side

the formula for area is (side 1)(side 2) = area

so using this, divide the area by the side you do know, and you will get the unknown side

hope this helps!

Step-by-step explanation:

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answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.