Tetrahedron is a Platonic solids which is also a pyramid, i.e. Option (A).
What is pyramid?
Pyramid is a three dimensional shape. Pyramid is a polyhedron formed by connecting a polygonal base and a point. A triangular pyramid is also called a tetrahedron.
- A tetrahedron is known as a triangular pyramid in geometry. The tetrahedron consists of 4 triangular faces, 6 straight edges, and 4 vertex corners. It is a platonic solid which has a three-dimensional shape with all faces as triangles.
So,
As mentioned in the above definition "A triangular pyramid is also called a tetrahedron."
Hence, we can say that Tetrahedron is a Platonic solids which is also a pyramid, i.e. Option (A).
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