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# Geom5-5

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### Geom5-5

1. 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. 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. 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. 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