Question

A square with a side of 20 is decreased to a side of 16. By how much is the diagonal decreased? s it just 4

Answer 1

when the side is 20
the diag length is 20 root 2
when the side is 16
the diag length is 16 root 2
therefore it has decreased by 4root 2 length

Answer 2

by Pythagoras theorem :-
big square's diagonal=\[20\sqrt{2}\]
small square's diagonal=\[16\sqrt{2}\]

Answer 3

now subtract them:-
u will get \[4\sqrt{2}\]

Answer 4

o ok yeah i knew it wouldnt be as simple as 4 thank u

Answer 5

as example:-