A three dimensional triangle is also known as a pyramid. In a triagonal pyramid, there are six edges and four corners.
A pyramid
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3 dimensional is a cube. it has 8 edges
A three dimensional triangle is also known as a pyramid. In a triagonal pyramid, there are six edges and four corners.
A pentagonal pyramid.
A pyramid
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-7
3 dimensional is a cube. it has 8 edges
A 3 dimensional pentagon has 15 edges
A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges.
A tetrahedron or triangular pyramid.
Square-based pyramid (like the ones in Egypt).
A triangular pyramid has 4 corners and 6 edges (and 4 faces).
There is no 3 dimensional figure with JUST 3 edges.