Respuesta :

Pentagon - 5 sides = 5 x 4 = 20

Hexagon - 6 sides = 6 x 5 = 30

Nanogon - 9 sides = 9

20 + 30 + 9 = 59 IN TOTAL 

clarissefakreddine
if you add 20 and 30 and 9 you get 59. The reason we can figure this out is because a pentagon has 5 sides. A hexagon has 6 sides, and a nonagon has 9 sides.