Math, asked by rhyan3, 11 months ago

find the area of the square whose perimeter is 84 CM

neerajagoli2303: Given : Perimeter is 84 cm ;;;.

neerajagoli2303: Perimeter formula of square is 4x ( x be the length of the side of the square)

neerajagoli2303: Soo... Perimeter=4x. => 84=4x

neerajagoli2303: => x=84÷4 =21

neerajagoli2303: x=21 cm =side of square

neerajagoli2303: So now area of square is 2x ( l

neerajagoli2303: (length × width )==>x+x=2x

neerajagoli2303: Sorry x×x== x^2

neerajagoli2303: Then x^2=21^2=21×21=441 square cm.

Answers

Answered by PADMINI

Answer : 441 sq cm

Explanation -

Given : perimeter = 84 cm .

Finding the side of the square-

Perimeter of the square = 4 x side

84 = 4 x Side

Side = 84/4

Side = 21 cm.

________________________

Finding the Area of the square-

Area of the Square = side x side

Area of the square = 21 x 21

Area of the Square = 441 sq cm.

Answered by minakshi2082

Answer:

Step-by-step explanation:

First you will find length of one side:

84÷4 = 21

Now, area equals to:

Side×side

=21×21

= 441 cm sq.

Nice????

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