Question

The diagonal of a square is 15 m; find the
length of its one side and perimeter.
Pidite.​

Answer 1

Answer:

In a square all sides are same.

By applying Pythagoras theorem to one side of diagonal. Let side=x

(Diagonal)²=(side)²+(side)²

15²=x²+x²

2x²=225

x²=112.5

x=10.6m is one side

Then,

Perimeter=4x

               =42.4m

Answer 2

Answer:  one side =10.61 m

perimeter = 42.44

Step-by-step explanation:

let a be the side of the square

d be the diagonal

    a=√2×d/2

       =√2×15/2

       =√2×7.5

       =  10.6066017....

        =10.61 m

perimeter = 4 a

                = 4 * 10.61

                 =42.44 m