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The term "perimeter" refers to the total distance around a two-dimensional shape. If you're asking about the perimeter of a square with a side length of 21 units, it would be calculated as 4 times the side length, giving a perimeter of 84 units. If you're referring to a different shape, please specify, and I can provide the corresponding perimeter calculation.
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Earn +20 ptsQ: What is the perimeter of 21?
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What is the perimeter and area of a square of 21?
If you're asking about a square with side length 21, the perimeter is 4 x 21 = 84 and the area is 212 = 441.
What is the perimeter of a square when the diangel is 21?
53.3969
What is the perimeter of a rectangle with 21 x 7?
56
Which has a greater perimeter the rectangle with the dimensions 21x 2 or the dimensions 6x7?
21 x 2 has greatest perimeter
What is the perimeter of a room 21 by 30 feet?
It depends on the shape of your room. If your room is a rectangle then your perimeter is 102 feet.
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