9
An octangular pyramid, probably better known as an octagonal pyramid, has 9 faces, 16 edges and 9 vertices.
Nine; eight triangular faces which all meet at the apex and the base, which is in the shape of an octagon.
The adjectives octagonal and octangular are examples of words that come from the Greek and Latin prefix 'octa-' for 'eight'. The adjective/noun octavo is another example. Other examples include octagon, octahedron, octant, and octave.
The noun octagon and the adjectives octagonal and octangular are examples of words that begin with the Greek and Latin prefix 'octa-'. The noun octahedron is another example. Still another example is the noun octant. Yet another example may be found in the noun octave or the adjective/noun octavo.
The adjectives octagonal and octangular are examples of words that begin with the Greek and Latin prefix 'octa-'. Another example is the adjective/noun octavo. The nouns octahedron, octant, and octave are still other examples.
If it's a hexagon barrel and 22 lr it's a 12-C if it's 22 WRF it's a 12-CS. 12-A is a round barrel, 12-B is round and shoots short's only (Gallery rifle) By the way it was made in 1913.
Answer 3Of course it depends on the shape. And the question is about one particular shape: an octangular (let's not quibble over the spelling) pyramid. This is by definition a shape having an octagon as its base and one apex. The base has 8 vertices and the apex is the 9th.Answer 2It depends on the shape.Octangular implies 8 vertices. These can be in the form of a cuboid, a heptagonal pyramid, a hexagonal di-pyramid, or at least two other shapes.A cuboid has 16 diagonals;A heptagonal pyramid has 14 (all in the heptagon);A hexagonal dipyramid had 10 (9 in the hexagon and one joining the two apex).The "other shapes".Think of a triangular prisms lying on a rectangular face. Consider both the top vertices being pushed towards each other. Now attach this to a mirror image underneath it. This shape will have 14 diagonals. (If the vertices are not pushed in, the result will be a kind of cuboid).Finally, there as a pentagon with one apex below it and two apex above. There are 5 diagonals in the pentagon, 5 from the pentagon to an apex above, two between the top apex and bottom and none between the pentagon and the apex below. A total of 12. But I would not bet on that.Also, there may be other octangular shapes.Answer 19
you mean what you mean
Mean is the average.
It mean what you don't what does it mean.
The arithmetic mean is a weighted mean where each observation is given the same weight.