1.3 What's a Widget?
                            Warm-Up

pg. 53 # 26, 27, 31 (Hint: start by drawing a figure, then
label...
1.3      What is a Widget? pg. 47 to 5 4

----Do NOT get hung up on the name.

A widget is a madeup word to illustrate a
c...
Creating a Good definition:

   Classify
     Differentiate
       Test (if you can find a conterexample then you need ...
Parallel Lines:

      Lines in the same plane that never meet




                                                      ...
Perpendicular Lines:

           Lines that intersect (cross) at exactly 90 angles


                                    ...
Complete Investigation
 Defining Angles pg. 49 IN GROUPS

   The best way to understand is to try
  YOURSELF, then TRY A...
Right Angle:




Acute Angle




Obtuse Angle
Pair of Complementary Angles   Pair of Supplementary Angles




Pair Of Vertical Angles         Pair of Linear Angles
Solve this problem!
Try page 51 to 52 # 1-21 odd
1.3 What Is A Widget
1.3 What Is A Widget
1.3 What Is A Widget
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1.3 What Is A Widget

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1.3 What Is A Widget

  1. 1. 1.3 What's a Widget? Warm-Up pg. 53 # 26, 27, 31 (Hint: start by drawing a figure, then label, then solve AB = 12 cm 3 #26 A D C B A  #27 E  m<EBC = 36  D B 24  C
  2. 2. 1.3 What is a Widget? pg. 47 to 5 4 ----Do NOT get hung up on the name. A widget is a madeup word to illustrate a concept--- it is just a definition based on what you see in front of you and it is TRUE all the time.... AND there are no counterexamples to it
  3. 3. Creating a Good definition:  Classify  Differentiate  Test (if you can find a conterexample then you need to redefine the word) Define these: 1. Parallel Lines 2. Perpendicular lines 3. Skew lines
  4. 4. Parallel Lines:  Lines in the same plane that never meet Symbol to show lines are parallel Arrow marks say these lines are parallel Lines can ALSO be named by ONE lowercase cursive letter. Statement describing the figure:
  5. 5. Perpendicular Lines:  Lines that intersect (cross) at exactly 90 angles Box indicates 90 (always in corner at vertex) Symbol for perpendicular lines Statement for perpendicular Lines:
  6. 6. Complete Investigation  Defining Angles pg. 49 IN GROUPS  The best way to understand is to try YOURSELF, then TRY AGAIN.  You will learn more and REMEMBER more if you figure it out yourself  You won't realize this now--but TRUST ME-or ask a Junior
  7. 7. Right Angle: Acute Angle Obtuse Angle
  8. 8. Pair of Complementary Angles Pair of Supplementary Angles Pair Of Vertical Angles Pair of Linear Angles
  9. 9. Solve this problem!
  10. 10. Try page 51 to 52 # 1-21 odd

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