Question

What is the preimeter of the square having diagonal 10

Answer 1

Answer:

Step-by-step explanation:

Diagonal of a square = √2 a

√2a = 10

a = 5√2

Perimeter = 4 × a

4 ×5√2 = 20√2 units

Answer 2

Answer:

Step-by-step explanation:

Here ,

Length of diagonal =10

We know that the diagonals of a parallelogram bisect each other at right angles.

So,half the both the diagonals of the square we get,

Length =5

By applying Pythagoras theorem we have,

Root of (5*5)+(5*5)=root 50 =root 2*5*5=5root2

Therefore the length of one side=5root2

So perimeter = 5root2*4=20root2