Yes.
Four solid angles comprising 12 plane angles.
None of the edges of a triangular pyramid is parallel to any of its other edges.
Yes it does! :)
A pyramid does not need to have any equal sides. A REGULAR pyramid has as many equal sides as the number of sides on the base. So, a triangular pyramid (tetrahedron) will have 3 equal faces, a square based pyramid will have 4, etc.
The base of any pyramid is simply one side!
The volume for any pyramid = 1/3*base area*perpendicular height
A triangle-based pyramid has one right angle at the apex where the three triangular faces meet. This right angle is formed by the intersection of the base of the pyramid and one of its slant edges. The other angles in a triangle-based pyramid are typically acute angles formed by the base and the slant edges.
yes, 2 pairs of congruent faces which are the 4 triangles in the triangular based pyramid:)
What's the question? A pyramid is a construction with triangular sides which meet in a point. The base can be any polygon shape.
Any one of the four triangular faces.
None of the edges of a triangular pyramid is parallel to any of its other edges.
Yes it does! :)
There are four triangular faces, of which any one can be a base at any instant.
A pyramid does not need to have any equal sides. A REGULAR pyramid has as many equal sides as the number of sides on the base. So, a triangular pyramid (tetrahedron) will have 3 equal faces, a square based pyramid will have 4, etc.
The base of any pyramid is simply one side!
The volume for any pyramid = 1/3*base area*perpendicular height
A triangular based based pyramid is a TETRAHEDRON. It becomes a regular tetrahedron if the four triangles, that make up its shape, are REGULAR, that is they are all the same size by area and shape; that is they are congruent. The word 'polyhedron' means a solid shape of any number of sides.
Surface area of any pyramid is 1/2Pl + B; where P=perimeter of the base, l=slant height and B= Area of the base.