Question

the diagonal of square of side 10 cm is
A)5√2cm
B)10√3cm
C)10√2cm
D)100cm ​

Answer 1

Answer:

Option c) 10 root 2

Step-by-step explanation:

There is a formula to find diagonal when side of a square is given (for squares only)

The formula is...

*Diagonal of square= root 2 × side*

So your answer,

Diagonal of given square=10×root2

Aslo for extra information the answer can also be found out by using pythagoras theorem

Answer 2

Answer:

Step-by-step explanation:

Let ABCD be the square of side 10 cm.

Join BD.

We know that (hypotenuse)²=(perpendicular)² + (base)²

HERE,

(BD)²=(AB)²+(BC)²

        = 100 + 100

BD= 10√2 cm