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A nonagon has nine sides, and a triangle has three, so altogether they have 12 sides.
A pentagon has fives sides, and a quadrilateral has four. So 2 pentagons and 1 quadrilateral have 2*5 + 4 = 10 + 4 = 14 sides altogether.
A heptagon has seven sides and a nonagon has nine, so in 1 heptagon and 2 nonagons there are 7+(2*9) = 25 sides altogether.
A quadrilateral has four sides, and a hexagon has six. So one quadrilateral and three hexagons have 1*4 + 3*6 sides = 4 + 18 sides = 22 sides.
A nonagon has nine sides and a pentagon has five sides. So 4 nonagons and 1 pentagon have 4*9 + 1*5 sides = 41 sides
A nonagon has nine sides, and a triangle has three, so altogether they have 12 sides.
A nonagon has 9 sides and a quadrilateral has 4 sides so it has 5 more sides
A nonagon has nine sides, and a pentagon has five, so together they have 14 sides.
A nonagon has nine sides and an octagon has eight, so in 1 nonagon and 5 octagons there are 1*9 + 5*8 = 9 + 40 = 49 sides altogether.
9 - 4 = 5.
A dodecagon has 12 sides, a nonagon has 9, and quadrilateral has 4, and a triangle has 3. So in 1 dodecagon, 2 nonagons, 1 quadrilateral, and 4 triangles there are 1*12 + 2*9 + 1*4 + 4*3 = 12 + 18 + 4 + 12 = 46 sides altogether.
A pentagon has fives sides, and a quadrilateral has four. So 2 pentagons and 1 quadrilateral have 2*5 + 4 = 10 + 4 = 14 sides altogether.
A heptagon has seven sides, a nonagon has nine, and a quadrilateral has four. So in 2 heptagons, 3 nonagons, and 3 quadrilaterals there are: (2*7)+(3*9)+(3*4) = 14 + 27 + 12 = 53 sides altogether.
A heptagon has seven sides and a nonagon has nine, so in 1 heptagon and 2 nonagons there are 7+(2*9) = 25 sides altogether.
A quadrilateral has four sides, and a hexagon has six. So one quadrilateral and three hexagons have 1*4 + 3*6 sides = 4 + 18 sides = 22 sides.
A Nonagon has 9 sides
a nonagon have 9 sides...