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Q: How do you calculate a perimeter of a rectangle?

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You add up all of the sides of the rectangle.

The perimeter of rectangle is the sum of the four sides of a rectangle.

The answer is 12 cm.

To find the perimeter of a rectangle you must calculate the lengths of each of the sides and add them all together.

156 It is impossible to calculate the area of a rectangle from its perimeter if no other dimension is known. The area of a rectangle is the product of its length and width, and the perimeter is twice the sum of its length and width.

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no No. You need to know the length of a rectangle's sides in order to calculate the perimeter.

Add up all the sides of the rectangle.

You add up all of the sides of the rectangle.

perimeter of rectangle=2(l+b) l=length of the rectangle b=breadth of the rectangle

The perimeter of rectangle is the sum of the four sides of a rectangle.

The perimeter of a rectangle is the distance around the rectangle. The area of a rectangle is the space inside the rectangle. To calculate either one you need the length and the width of the rectangle. To calculate the area multiply the length times the width. To calculate the perimeter add the length+width+length+width (that is the distance all the way around)

12cm

The answer is 12 cm.

To find the perimeter of a rectangle you must calculate the lengths of each of the sides and add them all together.

you add all the sides up

156 It is impossible to calculate the area of a rectangle from its perimeter if no other dimension is known. The area of a rectangle is the product of its length and width, and the perimeter is twice the sum of its length and width.

yes