Question

if the length of a diagonal of a square is 20 cm , then it's perimeter is

give answer with formula ​

Answer 1

Given :-

The length of a diagonal of square is 20cm

Perimeter of square = 4 * side

Solution :-

Diagonal of square = side√2

Here , Diagonal = 20cm

Therefore ,

Size = Diagonal / √2

Size = 20/√2 * √2 /√2

Size = 10√2 cm

Now , Perimeter of square = 4 * Side

Perimeter of square = 4 * 10√2

Perimeter of square = 4 * 10√2

Perimeter of square = 40√2cm

Answer 2

answer : 40√2 cm

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