Question

The perimeter of a square is 36 cm. Find the length of its diagonal.​

Answer 1

perimeter of square = 36cm

4×side=36cm

side=9cm

diagonal of square=side√2

=9√2cm

Answer 2

AnSwEr -:


12.73 cm is a length of diagonal of a

square.

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Explanation-:

Let s be the length of aside of a square .

Given ,

Perimeter of a square-:36 cm = 4s

= 4s = 36 cm

= s = 36/4

= s= 9

To find ,

As we know that ,

Diagonal of a square (d) -: √2s

∴d= √2 x 9

= d = 9 √2

= 12.73

12.73 cm is a length of diagonal of a

square.

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Some other formula for square -:

Perimeter = a+ a + a + a , a= length of

side of square

Area = s x s , s = length of side of a

square

Diagonal of a square (d) -: √2s. ,

d= diagonal

S= length of side of a square

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