More squares
Probability
Level
3
Consider the following square lattice:
In how many ways can you pick four dots that form the corners of a square?
Image credit: www.qwerty.co.za
The answer is 20.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
There are several squares that can be made:
Total: 9 + 4 + 1 + 4 + 2 = 2 0