Solve equation

Let's call the length of the side of the square "x".

We know that the area of a square is height times base. Because each side of the square has the same length, we can say the area is equal to $x^2$

The perimeter is the sum of each side of the square, so it can written as $4x$

Because the area is equal to 5 times the perimeter, we can write the following equation and sove for x.

$x^2=5\times4x$

$x^2=20x$

$x^2-20x=0$

$x(x-20)=0$

$x=20$

Therefore, the length of one side is 20.

Nicely done and explained Guest #1 !

Will 85237 answered your question.

He in not a guest !   He is a member !!

And you are right.  Will gave a very good answer to this question.  Thanks Will     

I am sure Will was very pleased to receive your recognition.  Thanks :)

Wasn't my question...I just looked to see if it was correct.....I just saw the answer and thought it was done well. (by a teacher?)   Nice job Will85237 !  I just saw the #1 in the corner and made the comment...

~jc

This is so cool! Thanks Will85237 for answering the question it really helped me!