Q&A for How to Calculate the Perimeter of a Square

66 m. The formula for perimeter of a rectangle is 2(l + b). Hence the perimeter is = 2 x (16.3+16.7) = 2 x 33 = 66 m.

One of the fundamental properties of a square is that all sides are equal. This means that if you know just one of its side's length, you also know all the lengths of the other 3 sides.

Add the sides together.

The length of a square is equal to its width. Each is equal to the square root of the square's area.

First find the square root of the area. That gives you the length of a side. Multiply that by four to get the perimeter.

If the diagonals are equal, the rhombus is a square. By the Pythagorean Theorem, the square of a diagonal is equal to the sum of the squares of two of the sides, which in the case of a square means that the square of a diagonal equals twice the square of a side. Set up an equation to that effect, and solve for a side. Multiply by four to find the perimeter.

All sides of a square are equal in length, so set those two expressions equal to each other. Solve for x, then use the value of x to find the length of a side. Multiply by four.

If 400 is the area of the square, then the side length of that square must be the square root of 400, or 20. Multiplying 20 by 4 sides gives 80 as the perimeter of the square. Given the area of A, the perimeter is always √A times 4, or 4√A.

Use the same number of significant digits found in the length and width measurements. If the length and width are given with different numbers of significant digits, use the lower number of significant digits.

From the Pythagorean theorem, we know that the side of a square is equal to the diagonal divided by the square root of 2. So divide the diagonal by 1.41. Then multiply that number (the side) by four to get the perimeter.

You find the length of a side of a square simply by dividing the perimeter by four.

A square with sides of 8 units each has a perimeter of 32 units and an area of 64 square units.

Divide 400 by 4 to get the length of one side of the square. You get 100 m. Multiply 100 by itself to find the area, and you get 10,000 m².

Divide 100 by 4.

Possible dimensions include all pairs of numbers that multiply together to make 156. Examples include 1 m and 156 m, 2 m and 78 m, 3 m and 52 m, and so on. There is actually an almost endless list of such dimensions, including many that do not consist of integers. All of the areas would be the same: 156 sq m.

You need to first solve for the length of a side. To do so, divide the perimeter by 4. Then, square that number. That is the area of the square.

The inclusion of mixed numbers may complicate the process a bit, but it's still the same process.

Yes.

You don't have enough information to find the area. You would need to know the height, another side or some of the angles.

Add twice the length plus twice the width.

You don't have enough information to find the perimeter. You would also have to know the length of at least one of the sides. (You'd then divide the area by the known side to find the other dimension. Then you could add up the four sides to find the perimeter.)

If each side of the square is given as (2x - 1), the perimeter would be 4(2x - 1) = 8x - 4.

Yes, if they're asking for "the perimeter of the square." If they're asking for the perimeter of the whole figure, you ignore that side of the square and the part of the rectangle's perimeter attached to the square.

Divide 108 by 12, and that will give you the length of the other side. The length and width are 12 and 8. Then find perimeter = 2*length + 2*width, so the perimeter = 40.