Question

The Perimeter Of A Square Is 84cm. its Area is​

Answer 1

Hi! Hope this helps!!

Answer: Area = 441  sq.cm

Step-by-step explanation:

Perimeter of a square = Side(s) × 4

84 = s × 4 (Putting the info)

s × 4 = 84 (Shifting sides)

s = 84 ÷ 4 (Transposing 4)

s = 21 cm

Area = Side × Side

Area = 21 × 21 (Putting the info)

Area = 441  sq.cm

                                                    Btw, Please mark me as Brainliest! Thnx!

Answer 2

Answer:

441 cm²

Step-by-step explanation:

Perimeter of square = 4×Side

Let each side be x

et each side be xPerimeter = 4x

et each side be xPerimeter = 4x84 = 4x

et each side be xPerimeter = 4x84 = 4xx = 84/4

et each side be xPerimeter = 4x84 = 4xx = 84/4x = 21

et each side be xPerimeter = 4x84 = 4xx = 84/4x = 21Area of Square = Side × Side

et each side be xPerimeter = 4x84 = 4xx = 84/4x = 21Area of Square = Side × SideArea = 21 × 21

et each side be xPerimeter = 4x84 = 4xx = 84/4x = 21Area of Square = Side × SideArea = 21 × 21

et each side be xPerimeter = 4x84 = 4xx = 84/4x = 21Area of Square = Side × SideArea = 21 × 21 AREA = 441 cm²

PLEASE MARK ME AS BRAINLIEST