# Chapter 10

### Jack H

## Section 1

## Parallelogram A=bh The base of a parallelogram is the length of any of its sides. The perpendicular distance between the base and the opposite side is the height. | ## Trapezoid A=1/2(b1+b2)h The bases of a trapezoid are its two parallel sides. The perpendcular |

## section 2

The are of a circle is A=3.14r^2

the area of a circle is the product of 3.14 and the square of the radius.

## Section 3

A solid is a three-dimensional figure that encloses a part of a square. A polyhedron is a solid that enclosed by polygons. A polyheron only has flat surfaces

## prism It is a polyhedron. Prisms have two congruent bases that lie in parallel planes. A cube is a prism with six square faces. | ## pyramid It is a polyhedron. pyramid have one base and the other sides are triangles. | ## cylinder A cylinder is a solid with two circular bases that lie parallel to each other. Not congruent. |

## prism

It is a polyhedron. Prisms have two congruent bases that lie in parallel planes. A cube is a prism with six square faces.

## Section 4

A net is a two dimensional patten that forms shape when folded

## What shape would this form?

hexagonal pyramid.

## Section 5

The slant height of a pyramids the height of one edge to the top of the pyramid

The surface area of a pyramid is S=B+1/2PL

B=the area of the base

L=this is the slant height.

Surface area of a cone is S=3.14^2=3.14rL

How To Find The Total Surface Area Of A Cone: THE EASY WAY!

## Section 6

V=Bh

The volume of a prism is the product of the area of the base B and the h

Volume - Rectangular Prisms

## How to find volume of a cylinder

V=Bh or 3.14r^2h

the volume of a cylinder is the product of the area of the base B and the height h

## section 7

The volume of a pyramid is V=1/3Bh

the V of the pyramid is one third the product of the ares of the base.

## cone

How to find the area of the cone you have to do V=1/3Dh or1/33.14r^2h.

## sphere

To find the area of a sphere is V=4/33.14r^2

## practice problems what's the volume of this sphere? | ## practice problems what's the volume of this pyramid? | ## practice problems What's the volume of this cone |