Question

3.
If diagonal of a square is 13 cm then find its side.​

Answer 1

Given:

Diagonal of Square = 13 cm

For a square , each of whose side is 'a' .

Diagonal of Square = √2 a

13 = √ 2 a

a= 13 /√2

a= (13× √2/ √2 × √2)

[ By rationalising the denominator]

a= 13√2 /2

a= 6.5√2

Hence, the side of a square is 65√2 cm

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Answer 2

Answer:

13/√2=9.19cm

Explanation:

we know diagonal of a square is given by d=√2a

given, diagonal d=13cm

then, a=?

a=d/√2

a=13/√2

a=9.19cm