Question

diagonal of a square is 20cm find the length and perimeter of the square

Answer 1

Answer:

Diagonal=20cm

Diagonal of a square is given by the formula a√2

Therefore,

a√2=20

2a²=400

a²=200

a=√200=10√2cm

Perimeter = 4*10√2

= 40√2cm

Answer 2

Step-by-step explanation:

the length of the square is 10√2 cm and the perimeter is 40√2 cm