Math 7A Topic 10 End Topic Vocabulary

a solid 3D figure with many flat faces. Examples include prisms, pyramids, cubes

• polygon

• parallelogram

• polyhedron

• pyramid

a flat 2D shape with straight sides. Examples include triangles and rectangles

• polygon

• parallelogram

• polyhedron

• pyramid

for a polygon, the point where two line segments meet.

for a polyhedron, the point where several edges meet.

• face

• edge

• base

• vertex

any of the individual flat surfaces of a solid object

• face

• edge

• base

• vertex

for a polygon, a line segment on the boundary joining one vertex to another

for a polyhedron, a line segment where two faces meet

• face

• edge

• base

• vertex

the surface a solid object stands on

• face

• edge

• base

• vertex

a solid object where the sides are triangles that meet at the top called the apex. The base is a polygon. The shape of the base gives the object its name.

• polygon

• pyramid

• prism

• parallelogram

a solid object with two identical ends and flat sides. The shape of the ends gives the object its name. The sides are parallelograms.

• polygon

• pyramid

• prism

• parallelogram

a flat pattern that you can fold to make a model of a solid 3D shape

• composite

  figure

• surface area

• net

• volume

the combination of two or more geometric figures

• composite

  figure

• surface area

• net

• volume