Chapter 10

SiSi R

Chapter 10 Vocabulary

Base of a Parallelogram -

The length of any one of its sides.


Height of a Parallelogram-

The perpendicular distance between the base and the opposite side.


Bases of a Trapezoid-

A trapezoids two parallel sides.


Height of a Trapezoid-

The perpendicular distance between the bases.


Area-


Circle-

A round plane figure who's boundary (the circumference) consists of points from the center.


Radius-

A straight line from the center to the circumference of a circle or sphere.


Diameter-


Circumference-

The distance around a circle.


Pi-

The ratio of the circumference of a circle to it's diameter


Solid-

A three dimensional figure that encloses a part of space.


Polyhedron-

A solid that is enclosed by polygons.


Face-


Prism-

A solid, formed by polygons, that has two congruent bases lying in parallel planes.

Pyramid-


Cylinder-


Cone-


Sphere-

A solid formed by all points in space that are the same distance from a fixed point called the center.


Edge-


Vertex-

The endpoint of the rays that form an angle.


Net-

A model that you can cut and fold and lay out of a solid shape.


Surface Area-

The sum of the areas of the faces of the polyhedron.


Slant Height-

The diagonal distance from the apex of a right circular cone or a right regular pyramid to the base.


Volume-

The amount of space a solid occupies.

Chapter 10 formulas

Area of a parallelogram-

A=bh