Question

The diagonal of a square is 20cm. what is the side of the square and it's perimeter ​

Answer 1

Answer:

hey mate here is your answer

Step-by-step explanation:

so, the diagonal of a square=20 cm

first find its area

area of square when diagnol is given is

1/2 d ²

=1/2*20²

1/2*400

400/2

= 200 cm²

now find the side using area

as side of square when area is given is

=√200

= 14.14 cm

now perimeter of square

=4 * side

4* 14.14

= 56.56 cm is the perimeter

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