Question

The diagonal of a square is 5root 2.Then it's perimeter is
$\sqrt{2}$
​

Answer 1

Answer:

20 cm

Step-by-step explanation:

Let the side of square be x cm.

Diagonal = 5√2 cm

A right triangle is formed

==: x² + x² = (5√2)²

==: 2x² = 50

==: x² = 25

==: x = √25

==: x = 5 cm

Perimeter = 4 * side

                 = 4 * 5

                 = 20 cm

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