No. A heptagon has 7 sides, so it has 7 angles; thus it cannot have 10 right angles.
Heptagonal is an adjective, not a noun! The answer will depend on whether you mean a heptagonal pyramid, a heptagonal bipyramid, a heptagonal prism or whatever.
A heptagonal what? Prism, pyramid or something else?
7
Nine.
Heptagonal is an adjective: the answer depends on the noun that it refers to. A heptagonal pyramid, a heptagonal dipyramid or a heptagonal prism or some other heptagonal shape?
No. A heptagon has 7 sides, so it has 7 angles; thus it cannot have 10 right angles.
there is 13 edges in a heptagonal pyramid.
Heptagonal is an adjective, not a noun! The answer will depend on whether you mean a heptagonal pyramid, a heptagonal bipyramid, a heptagonal prism or whatever.
a heptagonal pyramid has 8 faces
A heptagonal prism has two 7-sided bases.
A heptagonal what? Prism, pyramid or something else?
21
7
Nine.
eight(8)
8 faces