CHAPTER 5

1 / 57

# CHAPTER 5 - PowerPoint PPT Presentation

CHAPTER 5. MEASUREMENT. SECTION 5-1. Ratios and Units of Measure. MEASUREMENT – is a process used to find size, quantities, or amounts. COMPASS – is used for drawing curved lines and circles for measuring distances. PROTRACTOR – is an instrument for measuring and drawing angles.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## CHAPTER 5

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

MEASUREMENT

### SECTION 5-1

Ratios and Units of Measure

### SECTION 5-2

Perimeter, Circumference and Area

Circle

C = d or 2r

A =r2

Rectangle or Square

P = 2l + 2w

A = lw

Triangle

A = ½bh

Trapezoid

A = ½h(b1+b2)

### SECTION 5-3

Probability and Area

P(any event) =

number of favorable outcomes ÷ number of possible outcomes

### SECTION 5-4

Problem Solving Skills: Irregular Shapes

### SECTION 5-5

Three-dimensional Figures and Loci

The surfaces are called faces. Two faces intersect at an edge, and a vertex is a point where three or more edges intersect.

PRISM - a polyhedron with two identical parallel faces. Each of these faces is called a base and

PYRAMID - a polyhedron with only one base. The other faces are triangles that meet at a vertex and

CYLINDER - a three-dimensional figure having a curved region with two parallel congruent circular bases. Its axis joins the centers of the two bases.

CONE - a three-dimensional figure having a curved surface and one circular base. Its axis is a segment from the vertex to the center of the base.

SPHERE - is the set of points in space that are the same distance from a given point called the center of the sphere.

### SECTION 5-6

Surface Area of Three-dimensional Figures

Square prism

SA = 6s2

Rectangular Prism

SA = 2(lw + lh + wh)

Circular base

A = r2

Curved surface

A = 2rh

Cylinder

SA = 2rh + 2r2

Cone

SA = rs +r2

S is the slant height

Sphere

SA = 4r2

### SECTION 5-7

Volume of Three-dimensional Figures

Prism

V = Bh

where B = area of the given base

Pyramid

V = 1/3Bh

where B = area of the given base

Cylinder

V = r2h

Cone

V = 1/3r2h

Sphere

V = 4/3r3