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