Post on 26-May-2015
Constructions
Classwork #1,4,7,9 1
April 05, 2012
Objective draw and measure angles.
Agenda1. WU2. CHeck HW3. Notes4. HW
Warm UpSolve.n + 45 = 180
3y = 2y + 90
Constructions
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April 05, 2012
page 461 # 1
1. A, B, C2. AB, BC, AC3. AC, BC, BA, CA4. Z, R, F5. ZR, RF, ZF6. ZR, RF, ZF7. AB, AD, BD, BC8. DA, BD9. BA, BC, BD, AD, DA10. CH, CW11. H, C, W12. KD, DG, EH, EF13. GF, JI, KH14. GJ, FI, KJ, HI15. ML, NK, MR, NS16. RS, QP, LK17. PS, RQ, PK, QL18. AB, AD, EF, EH19. BF, CG, DH20. FG, BC, DC, HG
21.
22.
23.
24. V B
C
D
F
GH
J
Constructions
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April 05, 2012
Angle two rays with a common endpoint. A
B
C
1
vertexsides
Names for this angle:
Acute angle Right angle Obtuse angle Straight angle
Constructions
Classwork #1,4,7,9 4
April 05, 2012
Use a protractor to measure or draw angles.
Draw a 120o angle.
1. Draw YZ2. 3. 4.
Constructions
Classwork #1,4,7,9 5
April 05, 2012
Draw an angle with a measure of 170o.
Constructions
Classwork #1,4,7,9 6
April 05, 2012
To find the measure of an angle, extend its rays.
Find the measure of the given angle.
Constructions
Classwork #1,4,7,9 7
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
Constructions
Classwork #1,4,7,9 8
April 05, 2012
Measure each angle. Then classify it as acute, right or obtuse.
7. 8.
9. 10.
copy from page 464
Constructions
Classwork #1,4,7,9 9
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
Constructions
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April 05, 2012
Constructions
Classwork #1,4,7,9 11
April 05, 2012