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Geom5­5.notebook                                                    December 01, 2011




          BELL WORK: 
          If the sum of the measures of the angles of a triangle is 180, 
          what is the sum of the measures of the angles in:

          A) a quadrilateral?

          B) a pentagon? (5­sided polygon)




         p.238 #2­10,16

         Questions?




                                                                                        1
Geom5­5.notebook                                                       December 01, 2011




                             ED IT 
                           CR NITY
                        RA TU
                    E XT R
                     OP PO




            Agenda:
            • practice problems together
            • worksheet of properties (due at end of period)
            • no exit slip

            Looking ahead:
            • Tomorrow ­ 5.6 (will hand out review)
            • Thursday ­ in class project (review of quadrilaterals)
            • Friday ­ quiz over 5.4­5.6




                                                                                           2
Geom5­5.notebook                                                                        December 01, 2011


        Given: ABCD is a      (parallelogram)                  D            E           C
                 GHA ≅    FEC
              HB ≅ DE
        Conclusion: GH ≅ EF                                         G           F


                                                           A            H           B

                  1. ABCD is a                  1.

                  2. DC || AB                   2.

                  3.    ECF ≅    HAG            3.

                  4. AB ≅ CD                    4.

                  5. HB ≅ DE                    5.

                  6. HA ≅ EC                    6.

                  7.    GHA ≅    FEC            7.

                  8.    GAH ≅    FCE            8.

                  9. GH ≅ EF                    9.


                                     ** For extra practice with these proofs, look at p. 244 problem 3




       Find the perimeter of VRZA:

                                  y+12
                     A                                 Z


          2x­4                                       0.5x+8



           V              3y+5              R




                                                                                                            3
Geom5­5.notebook                                              December 01, 2011




                   Worksheet ­ Properties of Quadrilaterals
                   DUE AT THE END OF THE HOUR




                   Homework: p.244 #1­7,11,12
                   Due Thursday




                                                                                  4

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Geom5-5

  • 1. Geom5­5.notebook December 01, 2011 BELL WORK:  If the sum of the measures of the angles of a triangle is 180,  what is the sum of the measures of the angles in: A) a quadrilateral? B) a pentagon? (5­sided polygon) p.238 #2­10,16 Questions? 1
  • 2. Geom5­5.notebook December 01, 2011 ED IT   CR NITY RA TU E XT R OP PO Agenda: • practice problems together • worksheet of properties (due at end of period) • no exit slip Looking ahead: • Tomorrow ­ 5.6 (will hand out review) • Thursday ­ in class project (review of quadrilaterals) • Friday ­ quiz over 5.4­5.6 2
  • 3. Geom5­5.notebook December 01, 2011 Given: ABCD is a      (parallelogram) D E C    GHA ≅    FEC HB ≅ DE Conclusion: GH ≅ EF G F A H B 1. ABCD is a 1. 2. DC || AB 2. 3.    ECF ≅    HAG 3. 4. AB ≅ CD 4. 5. HB ≅ DE 5. 6. HA ≅ EC 6. 7.    GHA ≅    FEC 7. 8.    GAH ≅    FCE 8. 9. GH ≅ EF 9. ** For extra practice with these proofs, look at p. 244 problem 3 Find the perimeter of VRZA: y+12 A Z 2x­4 0.5x+8 V 3y+5 R 3
  • 4. Geom5­5.notebook December 01, 2011 Worksheet ­ Properties of Quadrilaterals DUE AT THE END OF THE HOUR Homework: p.244 #1­7,11,12 Due Thursday 4