Question

Diagonal of a square is ______ if it's side is x.
a) x√2
b) √2x
c) x²
please answer fast it's urgent... ​

Answer 1

Answer:

Step-by-step explanation:

x be the side of square  

By using Pythagoras theorem  

x  

2

+x  

2

=(10  

2

​  

)  

2

 

2x  

2

=200

x  

2

=100

x=10cm

Perimeter of square =4×x=4×10=40cm