0
A heptahedron is a closed 3-d shape with 7 polygonal faces. There are 34 topologically different convex heptahedra and, since none of these are regular, the term is ambiguous. There can be:
- no parallel edges,
- five pairs of parallel edges and two quintet,
- three quartets,
- two pairs and one triplet
as well as many other combinations.
Add your answer:
Earn +20 pts
What is a pentagonal heptahedron?
A pentagonal heptahedron is a heptahedron comprising two pentagons which are joined to one another by five quadrilaterals. There is no requirement for the pentagons to be congruent nor for them to be parallel to one another.
How many lines of parallel lines does a square have?
A square has 2 pairs of opposite parallel lines.
How many pairs of parallel line does a triangle have?
There cannot be parallel lines in any [plane] triangles.
How many sets of parallel lines are in a square?
there are 2 sets of parallel lines in a square
How many pairs of parallel lines does a diamond have?
A diamond has two pairs of parallel lines.
What is a pentagonal heptahedron?
A pentagonal heptahedron is a heptahedron comprising two pentagons which are joined to one another by five quadrilaterals. There is no requirement for the pentagons to be congruent nor for them to be parallel to one another.
How many vertice does heptahedron have?
A heptahedron can have 6 to 10 vertices.
How many parallel lines does a trangle have?
A triangle can have no parallel lines.
How many pairs of parallel lines does a parallelgram have?
it has too parallel lines!
How many pairs of parallel lines does a pentagon have?
A pentagon has no parallel lines.
How many faces does a heptahedron have?
A heptahedron has seven faces, like a heptagon has seven sides.
How many parallel lines does a cone have?
A cone does not have any parallel lines
How many sets of parallel lines does a triangle?
how many sets of parallel lines are in a triangle
How many lines of parallel lines does a square have?
A square has 2 pairs of opposite parallel lines.
How many parallel lines is there in a cube?
A cube has exactly 6 parallel lines.
How many parallel lines are there on a cube?
A cube has exactly 6 parallel lines.
How many parallel lines does a parallelogram have?
2 pairs of parallel lines
