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 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 hexagon has six sides, and a nonagon has nine. Three hexagons and three nonagons then have (3 x 6) + (3 x 9) = 18 + 27 = 45 sides altogether.
A nonagon has 9 sides and a triangle has 3. So there are (5*9)+(1*3) = 48 sides in 5 nonagons and 1 triangle.
A decagon has ten sides, a hexagon has 6, a nonagon has nine, and a triangle has three. So 2 decagons, 1 hexagon, 4 nonagons, and 2 triangles have 2*10 + 1*6 + 4*9 + 2*3 = 20 + 6 + 36 + 6 = 68 sides altogether.
A heptagon has seven sides, a hexagon six, a nonagon nine, and an octagon eight. So in 5 heptagons, 2 hexagons, 4 nonagons, and 3 octagons there are (5*7)+(2*6)+(4*9)+(3*8) = 35 + 12 + 36 + 24 = 107 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 hexagon has six sides, and a nonagon has nine. Three hexagons and three nonagons then have (3 x 6) + (3 x 9) = 18 + 27 = 45 sides altogether.
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 9 sides and a triangle has 3. So there are (5*9)+(1*3) = 48 sides in 5 nonagons and 1 triangle.
A decagon has ten sides, a hexagon has 6, a nonagon has nine, and a triangle has three. So 2 decagons, 1 hexagon, 4 nonagons, and 2 triangles have 2*10 + 1*6 + 4*9 + 2*3 = 20 + 6 + 36 + 6 = 68 sides altogether.
any shape that is closed and has no round sides, triangles, squares, pentagons, hexagons, heptagons, octagons, nonagons...
Nonagons have 9 sides
'Hepta' from Latin for '7' means the polygon has '7' sides. Similarly 'nona' from Latin for '9' means the polygon has '9' sides. Simnce there are 1 heptagon and 2 nonagons. then the number of sides is 7 + 9 + 9 = 7 + (2x9) = 7 + 18 = 25 The answer!!!!!
A heptagon has seven sides, a hexagon six, a nonagon nine, and an octagon eight. So in 5 heptagons, 2 hexagons, 4 nonagons, and 3 octagons there are (5*7)+(2*6)+(4*9)+(3*8) = 35 + 12 + 36 + 24 = 107 sides altogether.
All nine sided polygons are known as "nonagons". Nonagons that have all side lengths the same are known as "regular nonagons".
Nonagons are in the most extraordinary forms. There can be a nonagon- shaped booger!
1*6 + 2*4 + 4*10 + 3*9 = 6 + 8 + 40 + 27 = 81