a pyramid with a hexagonal base or a septagon
A cuboid or a pyramid with a heptagonal base are two possibilities.
A (Square) Pyramid
That's a pyramid.
A sphere
the base, plane, or bottom
Pyramid
a pyramid with a hexagonal base or a septagon
a pyramid with a triangular base has 4 faces. a pyramid with a square base has 5 faces.
A cuboid or a pyramid with a heptagonal base are two possibilities.
A (Square) Pyramid
That's a pyramid.
A sphere
A geometric figure with a polygonal base and triangular sides is called a pyramid.
A pyramid
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The surface area of a pyramid is the area of all the faces of the pyramid, for a pyramid with apex in the centre and a regular polygon as its base, (the bottom of a pyramid is the base, it is regular if all sides are the same length) the surface area is: B + 1/2(P * H) where B is the area of the base, P is the perimeter (area around) the base and H is the height of the pyramid.