7
$\begingroup$

The side of the square measures $1\ \mathrm{cm}$ , and $AC = 1\ \mathrm{cm}$, find the value of $AB$

picture

  • 0
    At first glance I'd suggest using similar triangles and Pythagoras and then bashing it out with algebra but that would be no fun (nor am I sure whether it'd work). Hoping someone posts some simplistically marvelous proof2012-03-01

3 Answers 3