## Billy’s PizzaMay 31, 2011

Posted by Saketh in : bonus , trackback

Billy obtained a triangular slice of pizza $ABC$ to go with his soda. If $m\angle A = m\angle B = 72 ^\circ$ and $AB = 1$, compute the exact value of $BC$.

It’s a length, it should be positive. However, $\frac{2}{3}$ is incorrect.