# Chapter 10

### Ashlyn W.

## 10.1 Areas of Parallelograms and Trapezoids

## Area of a Parallelogram

The area of a parallelogram is the product of the base and the height.

Formula: A=bh

## Trapezoids

Bases of a trapezoid are its two parallel sides. Height of a trapezoid is the perpendicular distance between the bases.

## Area of a Trapezoid

The area of a trapezoid is one half the product of the sum of the bases and the height.

Formula: A= 1/2(b1+b2)h

## 10.2 Areas of Circles

## Area of a Circle

The area of a circle is the product of TT and the square of the radius.

A=TTr2

How to Find the Area of a Circle, Given a Radius or a Diameter

## Area of two circles.

Formula: A=2TTr2

## 10.3 Three-Dimensional Figures

## Counting faces, edges, and vertices of the figure above.

Faces: 6

Edges: 12

Vertices: 8

## 10.4 Surface Areas of Prisms and Cylinders

## Surface Area of a Prism

Formula: S = 2B + Ph

## Surface Area of a Cylinder

S = 2B + Ch = 2TTr2 + 2TTrh

Surface Area Of A Cylinder - VividMaths.com

## 10.5 Surface Areas of Pyramids and Cones

## Surface Area of a Pyramid

S = B + 1/2Pl

## Surface Area of a Cone

Formula: S = TTr2 + TTrl

Surface Area of a Cone

## 10.6 Volumes of Prisms and Cylinders

## Volume of a Prism

Formula: V = Bh

= lwh

## Volume of a Cylinder

Formula: V = Bh

=TTr2h

## 10.7 Volumes of Pyramids and Cones

## Volume of a Pyramid

Formula: V = 1/3Bh

Volume of a Pyramid

## Volume of a Cone

Formula: V = 1/3Bh = 1/3TTr2h