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Tuesday, January 17 th. Please complete the warm up and write down your homework. Warm Up. Solve .05x=15.5 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.
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Tuesday, January 17th Please complete the warm up and write down your homework Warm Up Solve .05x=15.5 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 • 20/21 • 3 5/12 • 6 9/20 • 8 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
Our Mission Learn to describe figures by using the terms of geometry.
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. M 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. L N The building blocks of geometry are points, lines, and planes.
Q P R M N PR and NR You can also write RP and RN. Example #1 Use the diagram to name the geometric figure. A. three points M, N, and P points are labeled: points M, N, P, Q, and R. B. two lines
Point R is a point on PR and NR. Q P R M N Continued Use the diagram to name the geometric figure. C. a point shared by two lines point R D. a plane plane QRM Use any three points in the plane that are not on the same line. Write the three points in any order.
V U W T S UW and SW You can also write WU and WS. You Try! Use the diagram to name the geometric figure. A. three points S, T, and U Five points are labeled: points S, T, U, V, and W. B. two lines
Point W is a point on WS and WU. V U W T S You Try! Use the diagram to name the geometric figure. C. a point shared by two lines point W D. a plane plane VUT Use any three points in the plane that are not on the same line. Write the three points in any order.
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 rayhas 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
B A C AB, BC, and AC You can also write BA, CB, and CA. AB, BC, and AC You can also write BA, CB, and CA. 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
B AB, AC, BC, CB, CA, and BA A C AC Identifying Rays Use 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.
D E F DE, EF, and DF You can also write ED, FE, and FD. DE, EF, and DF You can also write ED, FE, and FD. 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
D DE, EF, DF, FE, FD, and ED E F DF 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.
Homework Workbook 8-1