Q: How do you find the side length of a square when the area is already given?

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If the area is already given, there should also be either width or length given. Do the area, divided by the length or the width. For example, the area divided by the width equal the length. Hope it helps.

Given the length of the diagonal of the square ... call it 'D units'. The area of the square is (1/2 D2) (same units)2.

i think you find the square root of the area. that's the length and the width, so you multiply it.

You do not indicate if the given area is the total area of the square and the triangle. Or whether they are equal values.

The length and width can't be determined since it is a rectangle. A length would need to be given, or it would have to be a square.

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The perimeter of square is 4 x length If you have perimeter only divide by 4 to get length and The area of square is length x length If you already have length that is all you need to know

The length of the side of a square with the given area of 81m squared is: 9 meters.

Square root the area. The length and width of a square are always the same and length times width is the area so this is how you get the area.

The length of the side of a square of area x square units is sqrt(x) units.

Yes, if it is a square the Area=A=l2 where l is the length and If you are given the area, then l=square root (A)

If the area is already given, there should also be either width or length given. Do the area, divided by the length or the width. For example, the area divided by the width equal the length. Hope it helps.

Given the length of the diagonal of the square ... call it 'D units'. The area of the square is (1/2 D2) (same units)2.

The length of a side is the square root of the area.

It is the same as its length, and if that is not given, it is the square root of the area.

i think you find the square root of the area. that's the length and the width, so you multiply it.

If the side length is s units then the area is s2 square units. So, given the area, take the principal square root.

If you are given the area of the square, then the length of each side is the square root of the area. If you are given the length of the diagonal of a square, then the lenght of each side is equal to the length of the diagonal divided by the square root of 2. l=sqrt(a) l=d/[sqrt(2)] l=length of side, d=diagonal, a=area, sqrt means square root