This
is a fun geometric problem with a practical solution:

How
can one measure the diagonal of a brick

*without any formula*, using three bricks and a ruler?
Can
you solve it?

There
is a remarkably easy way to find the diagonal. What you do is place two bricks
in a row, and then stack one brick on top of either one. So you have one brick,
and then next to it two bricks, creating an empty space where a fourth brick
could be placed.

Now
measure the length of the diagonal on the empty space using a ruler. No
Pythagorean Theorem required!

## 0 comments