Question

The area of a square is 49 cm^2. What is the perimeter, in cm, of the square?

Answer 1

The perimeter of square is 28 cm.

Explanation:

• To find perimeter of square firstly we need to find the side of square.

using Formula

Area of square = ( side )²

• 49 cm² = ( side)²

taking square root of both side

• √49cm² = √side²
• 7 cm = side

Now,

Perimeter of square is

Perimeter of square = 4 × side

• Perimeter = 4 × 7 cm

multiply,

• Perimeter = 28 cm

Hence , the perimeter of square is 28 cm.

Answer 2

P = 28 cm

Explanation:

The area of a square is

A = s^2 where s is the side length

49 = s^2

Taking the square root of each side

sqrt(49) = sqrt(s^2)

7 =s

Now find the perimeter of the square

P = 4s

P = 4(7)

P = 28 cm