Question

Five angles of a hexagon have measures 100 degrees 110 degrees 120 degrees, 130 degrees and 140 degrees. How much sides does it have ?

Answer 1

$100+110+120+130+140=500 \\ 720-500=220$ acording to this the last angle is 220 degrees and there are 6 sides on a hexagon as well as 6 side. The root hex means 6.

Answer 2

All hexagons have 6 sides. The prefix "hexa" means 6.