Question

the diagonal of a square is 20cm find the side of the square and its perimeter the answer is side 14.4 p =56.56​

Answer 1

Answer: This is your answer.

Step-by-step explanation:

Given :-

Diagonal of square= 20cm

We know that area of a square= 1/2×d²

= 1/2×20×20

=10×20

=200cm²

Also area =side²

so,

side=√area

side=√200

side= 200cm²

Perimeter=4×side

=4×10√2

=40√2 cm

Hence the perimeter of the square is 40√2 cm.

Hope this helps