Question

2)Find the length of diagonal of a square with side 8

cm​

Answer 1

Step-by-step explanation:

diagonal=√2 a

and a=8

then diagonal of square will be =√2× 8=8√2

Answer 2

Answer:

in square all sides are same I.e 8cm

so, l = 8 cm , b = 8cm

using hypotenuse theorem

h² = b² + p²

h² = 8² + 8²

h² = 64 +64

h² = 128

$h {}^{2} = (8 \sqrt{2} ) {}^{2}$

$h = 8 \sqrt{2} cm$

$diagonal = 8 \sqrt{2} cm$

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