1) The geometry class agenda included checking homework, taking notes on measuring and drawing angles, and working on classwork problems. 2) The document provided instructions on measuring angles using a protractor and drawing angles with specific degree measures. Examples were given to draw angles of 120, 170, 45, 110, 80, 60, 30, and 150 degrees. 3) Students were asked to measure angles from a diagram, classify them as acute, right, or obtuse, and copy definitions related to angles from their textbook.

1. Constructions April 05, 2012
Objective ­ draw and measure angles.
Agenda
1. WU
2. CHeck HW
3. Notes Warm Up
4. HW Solve.
n + 45 = 180
3y = 2y + 90
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2. Constructions April 05, 2012
page 461 # 1 ­
21.
1. A, B, C
2. AB, BC, AC
3. AC, BC, BA, CA
4. Z, R, F 22.
5. ZR, RF, ZF
6. ZR, RF, ZF
7. AB, AD, BD, BC
8. DA, BD
9. BA, BC, BD, AD, DA 23.
10. CH, CW
11. H, C, W B
V
12. KD, DG, EH, EF
13. GF, JI, KH 24.
14. GJ, FI, KJ, HI F
15. ML, NK, MR, NS C
16. RS, QP, LK G
17. PS, RQ, PK, QL H
18. AB, AD, EF, EH
19. BF, CG, DH D J
20. FG, BC, DC, HG
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3. Constructions April 05, 2012
Angle ­ two rays with a common endpoint. A
B 1
Names for this angle:
C
vertex
sides
Acute angle Right angle Obtuse angle Straight angle
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4. Constructions April 05, 2012
Use a protractor to measure or draw angles.
Draw a 120o angle.
1. Draw YZ
2.
3.
4.
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5. Constructions April 05, 2012
o
Draw an angle with a measure of 170 .
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6. Constructions April 05, 2012
To find the measure of an angle, extend its rays.
Find the measure of the given angle.
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7. Constructions April 05, 2012
Draw an angle with the given measures.
1. 45o 2. 110o
3. 80o 4. 60o
5. 30o 6. 150o
Measure each angle. Then classify it as acute, right or obtuse.
7. 8.
9. 10.
copy from book
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8. Constructions April 05, 2012
Measure each angle. Then classify it as acute, right or obtuse.
7. 8.
9. 10.
copy from page 464
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9. Constructions April 05, 2012
Read through section 9.2 and copy the definitions for the
following words
adjacent angles
vertical angles
congruent angles
supplementary angles
complementary angles
transversal
corresponding angles
alternate interior angles
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10. Constructions April 05, 2012
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11. Constructions April 05, 2012
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