Geom3-7

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Geom3-7

  1. 1. Geom3­7.notebook October 21, 2011 BELL WORK: If the perimeter of    EFG is 32, is    EFG  scalene, isosceles, or equilateral? E 10 x+7 F 2x­3 G ` Agenda for the day: • turn in p.139 #2,3,5,8,9 • homework questions • 3­7 • exit slip • discussion in partners 1
  2. 2. Geom3­7.notebook October 21, 2011 Homework questions? (p.144 #3,7,9,10) A Given: AB = AD BAC =    DAC Prove:    B =    D B C D 2
  3. 3. Geom3­7.notebook October 21, 2011 A So, if we know that a triangle is  isosceles, what do we know about 2  of the angles? B C D "base angles" What if we know that a triangles has  at least 2 congruent angles? Ways to prove that a triangle is isosceles: 3
  4. 4. Geom3­7.notebook October 21, 2011 equilateral vs. equiangular ONLY works for triangles 4
  5. 5. Geom3­7.notebook October 21, 2011 W EXIT SLIP: X WX and QX are radii m   W = 36 Q Find m   Q Find a partner near you and discuss   sample problems 2 and 3 on p.151.  I will walk around to answer questions. HOMEWORK: p.152 #2­4,10,11,15 Due Tuesday 5

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