1960 AMC 12 Question 27
AMC12 · 1960 AMC 12
Let $S$ be the sum of the interior angles of a polygon $P$ for which each interior angle is $7\dfrac12$ times the exterior angle at the same vertex. Then:
$S=2660^\circ$ and $P$ may be regular
$S=2660^\circ$ and $P$ is not regular
$S=2700^\circ$ and $P$ is regular
$S=2700^\circ$ and $P$ is not regular
$S=2700^\circ$ and $P$ may or may not be
regular