Question

I find perimeter of a square if its diagonal is 10√2 cm​

Answer 1

Answer:

Solution :

Let the side of the square = a

Diagonal ( d ) = 10√2

=> √2 a = 10√2

=> a = 10√2/√2

a = 10 cm ---( 1 )

Perimeter = 4a

P = 4 × 10

P = 40 cm