WAEC 2025 · Paper 1 · Q35✱✱

The exterior angles of a regular polygon are equal and add up to $360^\circ$, so an exterior angle must divide $360^\circ$ a whole number of times.

$360 \div 95$, $360 \div 78$ and $360 \div 85$ are not whole numbers.

$360 \div 72 = 5$, a regular pentagon.

So the answer is $72^\circ$, option C.