any shape that is closed and has no round sides, triangles, squares, pentagons, hexagons, heptagons, octagons, nonagons...
A heptagon has seven sides, and an octagon has eight sides. 4 heptagons and 5 octagons then have (4*7)+(5*8) = 68 sides altogether
A hexagon has six sides, and an octagon has eight. 3 hexagons and 3 octagons have 3*6 + 3*8 sides = 18 + 24 sides = 42 sides altogether.
hex = 6, hept = 7, oct = 8, non or enne = 9.
There are pentagons, hexagons, heptagons, octagons, et cetera.
A decagon has ten sides, a heptagon seven, and an octagon eight. So in 4 decagons, 4 heptagons, and 3 octagons there are 4*10 + 4*7 + 3*8 = 40 + 28 + 24 = 92 sides altogether.
Polygon means many sides. Octagon mean eight sides. Not all polygons are octagons, but all octagons are polygons. Examples of other polygons are triangles, squares, parallelograms, rhombuses, pentagons, hexagons, heptagons, decagons
The key shapes of a carbon based molecule are triangles, tetrahedrons, pentagons, hexagons, heptagons, octagons, etc. Also, square pyramids, octahedrons, and squares.
Quadrilaterals, pentagons, triangles, octagons, hexagons, decagons.
Triangles, squares, hexagons, and octagons all tessellate
The inside angles total 180 degrees, and the outside angles total 360 degrees. It is the same for triangles, parallelograms, rectangles, squares, trapezoids, hexagons, heptagons, octagons, and all enclosed plane figures.
Squares, circles, rectangles, trapeziums, hexagons, pentagons, octagons
Non-quadrilaterals contain triangles, circles, pentagons, octagons, hexagons, and stars.
They are both polygons whose exterior angles add up to 360 degrees.
An octagon has eight sides, so three octagons altogether have 8 * 3 = 24 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.
An octagon has eight sides, and a pentagon has five. So 5 octagons and 1 pentagon have 5*8 + 1*4 = 40 + 5 = 45 sides altogether.
A decagon has ten sides and an octagon has eight, so in 3 decagons and 5 octagons there are (3*10)+(5*8) = 30 + 40 = 70 sides altogether.
Triangles or squares or hexagons. There are also mixtures, like octagons plus squares.
Generally speaking, 2d shapes are all polygons. This would be, squares, parallelograms, triangles, rectangles, hexagon, octagons, pentagons, circle, and heptagons.
Hexagons provide complete area coverage, octagons would leave uncovered gaps.