Question

the perimeter of a square is 20.4cm.find it's side​

Answer 1

Answer:

5.1cm

Step-by-step explanation:

1. area of square=4s
2. given,area of square=20.4
3. 4s=20.4
4. s=20.4/4
5. s=5.1cm

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Answer 2

Given that:

• The perimeter of a square is 20.4 cm.

To Find:

• The side of the square.

Let us assume:

• The side of the square be x.

Formula used:

• Perimeter of a square = 4 × Side

According to the question.

ㅤ↠ㅤ20.4 = 4 × x

ㅤ↠ㅤ20. 4 = 4x

ㅤ↠ㅤ20.4/4 = x

ㅤ↠ㅤ5.1 = x

ㅤ↠ㅤx = 5.1

Hence,

• The side of the square is 5.1 cm.