A square has an area of 121 square centimetres.
What is its perimeter?
2 answers:
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>
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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