24
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Another contributor took issue:
You can't tell. There are an infinite number of rectangles with different perimeters
that all have the same area. Here are a few with areas of 36:
1 x 36 . . . . . P = 74
2 x 18 . . . . . P = 40
3 x 12 . . . . . P = 30
4 x 9 . . . . . . P = 26
5 x 7.2 . . . . P = 24.4
6 x 6 . . . . . P = 24
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The rectangle has a length of 12 cm and a width of 3 cm.
What is a rectangle were the area is 10 and the perimeter
243 = 27 x 9 so perimeter is 2 x 36 ie 72.
For a fixed perimeter, the area will always be the same, regardless of how you describe the rectangle.
The perimeter of a shape is the total distance around its outer boundary. For a rectangle with sides of 9 meters and 4 meters, the perimeter would be calculated as P = 2(9) + 2(4) = 18 + 8 = 26 meters. The area of a shape is the total space enclosed within its boundaries. For the same rectangle, the area would be calculated as A = 9 * 4 = 36 square meters.