en.wikipedia.org/wiki/Tetrahedron

The tetrahedron is one kind of pyramid, which is a polyhedron with a flat polygon
base and triangular faces connecting the base to a common point. In the case ...

www.answers.com/Q/A_figure_having_a_polygon_base_and_triangular_sides_which_meet_in_a_point_at_the_top

A figure having a polygon base and triangular sides which meet in a point at the
... tomb with a rectangular base and four triangular faces that meet at the top?

www.answers.com/Q/What_is_polyhedron_with_polygonal_base_and_triangular_sides_with_common_vertex

Which solid figure has a base that is a polygon and triangular faces that meet at a
... A figure having a polygon base and triangular sides which meet in a point at ...

www.bgfl.org/shapes

plane figure) having six ... A prism is a solid shape in which the top and bottom
polygons lie on top of each ... A solid object with a flat, often square, base and
four flat triangular sides which. slope inwards and meet to form a point at the top.

www.ck12.org/book/CK-12-Middle-School-Math-Grade-7/section/10.1/

Describe and classify faces of solid figures as specific polygons. ... The place
where two or more edges meet is called a vertex. ... A triangular prism therefore
has 3 lateral (side) plus the base and top, or 5 in all. ... bottle of perfume, a shoe
box, a soccer ball, and a magician's hat with a round bottom and a point at the top
...

www.meracalculator.com/area/pyramid.php

A Pyramid is a solid object having a polygon base, triangular sides that meet at
the top. ... Calculate the area, perimeter of Pyramid (Pyramid Calculator) ... It is a
structure where the upper surfaces are triangular and converge on one point.

www.finedictionary.com/pyramid.html

v pyramid increase rapidly and progressively step by step on a broad base; v
pyramid ... n pyramid a polyhedron having a polygonal base and triangular sides
with a ... on a triangular, square, or polygonal base, and terminating in a point at
the top; ... This point is called the vertex of the pyramid; and the planes which
meet in ...

www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U07_L3_T1_text_final.html

In mathematics, a flat side of a three-dimensional figure is called a face. ... A
polyhedron with a polygonal base and a collection of triangular faces that meet at
a point. ... A solid figure with a pair of circular, parallel bases and a round, smooth
face between them. Cone ..... Then, at the top, she hollows out an inverted
pyramid.

www.mathopenref.com/pyramid.html

A polyhedron that has a base and three or more triangular faces that meet at a
point ... These triangular sides are sometimes called the lateral faces to
distinguish them ... If the base is a regular polygon, the triangles are all congruent
(same shape ... In the figure above, click on 'reset' and 'explode', then drag th...

www.encyclopedia.com/topic/pyramid_(geometry).aspx

pyramid in geometry, solid figure bounded by a polygon (the base, or directrix)
and ... a square or triangular base and sloping sides that meet in a point at the
top, esp. one .... The surface, or lateral faces, of the pyramid are triangles having
as a ...