Question

the perimeter of a square is 4 x + 20 cm what will be the length of its diagonal​

Answer 1

Perimeter of a square = 4 * side

4x + 20 = side * 4

side = 4x + 20 / 4

side = 4 ( x + 5 ) / 4

∴side = x + 5 cm.

Now,

Diagonal of a square = √2 * side

Diagonal = √2 * ( x + 5 ) cm.

Answer 2

Answer:

perimeter of a square=4*side

4× + 20 = side *4

side = 4x + 20 /4

side = 4(X + 5 ) / 4

answer side = X + 5 cm.