Question

If the length of a diagonal of a square is 8 cm find the length of the side of the square.​

Answer 1

Consider that the side of the square is xcm.

Since the diagonals form a RIght angled triangle , then by Pythagoras theorem,

x

2

+x

2

=8

2

2x

2

=64

x

2

=32

x=

32

x=4

2

x=5.66cm