Question

The length of diagonal of a square is 10√2 cm. Find its side.

Answer 1

$\sf\huge\bold{Solution}$

Given

Length of Diagonal of a square is 10√2cm

To Find

Side of the square

We know the formula

$\sf\bold{D = \sqrt{2} a}$

$\sf \longmapsto \: a = \sqrt{2} \dfrac{d}{2}$

$\sf \longmapsto \: a = \sqrt{2} \times \dfrac{10 \sqrt{2} }{2}$

$\sf \longmapsto \: a = {\cancel{ \sqrt{2}}} \times \dfrac{10 \sqrt{2} }{{\cancel{ \sqrt{2}}} \times \sqrt{2} }$

$\sf \longmapsto \: a = \dfrac{10 \sqrt{2} }{2}$

$\sf \longmapsto \: a = 10cm$

$\sf \therefore \: side \: of \: square \: is \: 10cm$

Extra solved

we have side a=10cm

Then we can easily find the perimeter of square

Perimeter of square =4a

=>4×10=40cm

Area of square =(side)²

=>(10)²=100cm²

Answer 2

Answer:

the above answer is correct i am sure

Step-by-step explanation:

moo off :-(