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A rectangular pyramid has five faces. It has a rectangle as a base. From each side of the base, a triangular faces (four of them in all) come up to meet at a point which is above the base. Follow the link for a square pyramid, a special case of a rectangular pyramid.
A triangular pyramid has 4 triangular sides.A rectangular pyramid has 4 triangular sides and 1 rectangular side.
Unlike a tetrahedron (a four-faced shape with all triangular faces), a pyramid has a square (or rhomboid) base and triangular sides. Thus, a view from any side will yield a triangular appearance, while a view from below or above shows a square or rectangular shape.
The triangular prism has the two triangular bases and rectangular side faces.
yes they are triangles