Tuesday, January 17th • Please complete the warm up and

write down your homework

Warm Up1. Solve .05x=15.5

2. Write as a decimal: .02%

Corny Joke of the Day

How do you get straight A’s?

By using a ruler!

Tests

Great job!

File in your math Folder during

worktime

Weekly Review Answers Practice the ones you get wrong!

+ and – fractions

20/213 5/126 9/208 3/14

Multiplying and dividing Fractions

10 ½ 4 ½ 8/33 5 1/35

Solving with decimals

18.5

101.6

4.5

53.75

Solving with fractions

21/50

5 5/21

38/45

21/44

Ratios and Proportions

10.5 3 13:25 45 3 cups

Decimal/Fraction/Percent

97% and 97/100.8 and 80% $15 $12.72

Unit 2 Preview

Vocabulary Hunt Using your syllabus for Qtr. 3 to

help you find the book pages. Find the definition of the following

vocabulary! Point Line Plane Angle Acute angle Obtuse angles Vertical angles Adjacent angles

Be sure to give an example for each!

Angles &

Symmetry

Learn to describe figures by using the terms of geometry.

OUR MISSION

The building blocks of geometry are points, lines, and planes.

A plane is a flat surface that plane LMN, extends without end in all plane MLN, directions. plane NLM

A plane is named by three points on the plane that are not on the same line.

M

N

L

A point is an exact location. P point P, P

A point is named by a capital letter. A line is a straight path that line AB, AB, extends without end in A B line BA, BA opposite directions.

A line is named by two points on the line.

Example #1

Use the diagram to name the geometric figure.

A. three pointsM, N, and Ppoints are labeled: points M, N, P, Q, and R.

B. two lines

PR and NR

You can also write RP and RN.

Q

N

P

R M

Continued

Use the diagram to name the geometric figure.

C. a point shared by two linespoint R

D. a plane

plane QRMUse any three points in the plane that are not on the same line. Write the three points in any order.

Point R is a point on PR and NR.

Q

N

P

R M

You Try!

Use the diagram to name the geometric figure.

A. three pointsS, T, and UFive points are labeled: points S, T, U, V, and W.

B. two lines

UW and SW

You can also write WU and WS.

V

S

U W

T

You Try!

Use the diagram to name the geometric figure.

C. a point shared by two linespoint W

D. a plane

plane VUTUse any three points in the plane that are not on the same line. Write the three points in any order.

Point W is a point on WS and WU.

V

S

U W

T

A line segment is line segment XY, XY, made of two endpoints Y line segment YX, YX and all the points between X the endpoints.

A line segment is named by its endpoints.

A ray has one endpoint. ray JK, JK From the endpoint, the ray J K extends without end in one direction only.

A ray is named by its endpoint first followed by another point on the ray.

Line vs. Ray

Identifying Line Segments Use the diagram to give a possible name to the figure.

A. three different line segments

B. three ways to name the line

You can also write BA, CB, and CA.

AB, BC, and ACYou can also write BA, CB, and CA.

AB, BC, and AC C

A B

Identifying RaysUse the diagram to give a possible name to the figure.

A. six rays

B. another name for ray AB

A is still the endpoint. C is another point on the ray.

AB, AC, BC, CB,

CA, and BA

AC

C

A B

You Try #1!

Use the diagram to give a possible name to the figure.

A. three different line segments

B. three ways to name the line

You can also write ED, FE, and FD.

DE, EF, and DFYou can also write ED, FE, and FD.

DE, EF, and DFF

DE

You Try #2 Use the diagram to give a possible name to the figure.

C. six rays

D. another name for ray DE

D is still the endpoint. F is another point on the ray.

DE, EF, DF, FE,

FD, and ED

DF

F

DE

Homework

Workbook8-1