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Andru [333]
1 year ago
15

A square has an area of 121 square centimetres. What is its perimeter?

Mathematics
2 answers:
Oksi-84 [34.3K]1 year ago
6 0

Answer:

<u>44 cm</u>

Step-by-step explanation:

<u>Finding Side Length</u>

  • Area = (Side length)²
  • Take the square root on each side
  • Side length = √121
  • Side length = 11 cm

<u>Perimeter</u>

  • A square has 4 sides
  • Therefore, the perimeter is 4 times the side length
  • 4 × 11
  • <u>44 cm</u>
Karolina [17]1 year ago
3 0

Answer:

  44 cm

Step-by-step explanation:

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

  s = √A = √(121 cm²) = 11 cm

The perimeter of a square is the sum of its side lengths. There are 4 equal-length sides, so the perimeter is 4 times the length of one side:

  P = 4s = 4(11 cm)

  P = 44 cm

The perimeter of the square is 44 cm.

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