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Daily Homework Quiz For use after Lesson 8.2
1. What is an acute triangle?
2. Can a right triangle be isosceles?
Daily Homework Quiz For use after Lesson 8.2
1. What is an acute triangle?
2. Can a right triangle be isosceles?
ANSWER a triangle with three acute angles
ANSWER yes
8.1 – 8.4 Review8.1 – 8.4 Review
Essential QuestionsEssential Questions
Why is it important to be able to identify Why is it important to be able to identify congruent triangles in everyday life?congruent triangles in everyday life?
Where in real life can you use the Where in real life can you use the properties of isosceles and equilateral properties of isosceles and equilateral triangles?triangles?
How are the relationships between lines How are the relationships between lines and planes used in the real world?and planes used in the real world?
What areas in the real world are properties What areas in the real world are properties of parallel lines important?of parallel lines important?
Vocabulary ReviewVocabulary Review
A quick check on A quick check on
vocabulary from this unit.vocabulary from this unit.
1.1. An angle that measures between 1 & 90An angle that measures between 1 & 90°°
2.2. The angles whose sum is 180 °The angles whose sum is 180 °
3.3. An angle that measures exactly 180 °An angle that measures exactly 180 °
4.4. A triangle with exactly one 90 ° angleA triangle with exactly one 90 ° angle
5.5. A flat surface that extends infinitelyA flat surface that extends infinitely
6.6. An angle that measures between 90 &180 °An angle that measures between 90 &180 °
7.7. Has one endpoint and extends infinitely in one Has one endpoint and extends infinitely in one directiondirection
1.1. An angle that measures between 1 & 90An angle that measures between 1 & 90°°
2.2. The angles whose sum is 180 °The angles whose sum is 180 °
3.3. An angle that measures exactly 180 °An angle that measures exactly 180 °
4.4. A triangle with exactly one 90 ° angleA triangle with exactly one 90 ° angle
5.5. A flat surface that extends infinitelyA flat surface that extends infinitely
6.6. An angle that measures between 90 &180 °An angle that measures between 90 &180 °
7.7. Has one endpoint and extends infinitely in one Has one endpoint and extends infinitely in one directiondirection
supplementary
straight
right
planeobtuse
ray
8. A five-sided polygon8. A five-sided polygon
9. A 10-sided polygon9. A 10-sided polygon
10. A triangle with 3 10. A triangle with 3 sides sides
11. A quadrilateral with 2 pairs of parallel 11. A quadrilateral with 2 pairs of parallel sidessides
12. A triangle with no 12. A triangle with no sides sides
13. A quadrilateral with exactly one pair of 13. A quadrilateral with exactly one pair of parallel sidesparallel sides
8. A five-sided polygon8. A five-sided polygon
9. A 10-sided polygon9. A 10-sided polygon
10. A triangle with 3 10. A triangle with 3 sides sides
11. A quadrilateral with 2 pairs of parallel 11. A quadrilateral with 2 pairs of parallel sidessides
12. A triangle with no 12. A triangle with no sides sides
13. A quadrilateral with exactly one pair of 13. A quadrilateral with exactly one pair of parallel sidesparallel sides
pentagon
decagon
equilateral
parallelogram
scalene
trapezoid
14. A parallelogram with 4 14. A parallelogram with 4 sides sides
15. A quadrilateral with 4 15. A quadrilateral with 4 90 degrees 90 degrees anglesangles
16. Connects two vertices of a polygon that 16. Connects two vertices of a polygon that do not share a sidedo not share a side
17. A six-sided figure17. A six-sided figure
18. A seven-sided figure18. A seven-sided figure
14. A parallelogram with 4 14. A parallelogram with 4 sides sides
15. A quadrilateral with 4 15. A quadrilateral with 4 90 degrees 90 degrees anglesangles
16. Connects two vertices of a polygon that 16. Connects two vertices of a polygon that do not share a sidedo not share a side
17. A six-sided figure17. A six-sided figure
18. A seven-sided figure18. A seven-sided figure
rhombus
Rectangle
diagonal
hexagon
heptagon
19. Two angles whose sum is 90 19. Two angles whose sum is 90 °°
20. Has two endpoints, can be measured, 20. Has two endpoints, can be measured, and is a part of a lineand is a part of a line
21. Angles formed when two lines intersect 21. Angles formed when two lines intersect and are always congruentand are always congruent
19. Two angles whose sum is 90 19. Two angles whose sum is 90 °°
20. Has two endpoints, can be measured, 20. Has two endpoints, can be measured, and is a part of a lineand is a part of a line
21. Angles formed when two lines intersect 21. Angles formed when two lines intersect and are always congruentand are always congruent
complementary
Line segment
vertical
22. A line that crosses two or more lines22. A line that crosses two or more lines
23. Lines (on same plane) that never 23. Lines (on same plane) that never intersectintersect
24. Lines that meet at 90° angles24. Lines that meet at 90° angles
25. The point where two rays meet and form 25. The point where two rays meet and form an anglean angle
26. A many-sided figure26. A many-sided figure
22. A line that crosses two or more lines22. A line that crosses two or more lines
23. Lines (on same plane) that never 23. Lines (on same plane) that never intersectintersect
24. Lines that meet at 90° angles24. Lines that meet at 90° angles
25. The point where two rays meet and form 25. The point where two rays meet and form an anglean angle
26. A many-sided figure26. A many-sided figure
transversal
parallel
perpendicular
vertex
polygon
27. A polygon with 8 sides27. A polygon with 8 sides
28. A polygon with all congruent sides and 28. A polygon with all congruent sides and all congruent anglesall congruent angles
29. A polygon that does not have all 29. A polygon that does not have all congruent sides or anglescongruent sides or angles
27. A polygon with 8 sides27. A polygon with 8 sides
28. A polygon with all congruent sides and 28. A polygon with all congruent sides and all congruent anglesall congruent angles
29. A polygon that does not have all 29. A polygon that does not have all congruent sides or anglescongruent sides or angles
octagon
Regular polygon
Irregular polygon
Name a pair of:Name a pair of:
1.1. Vertical anglesVertical angles
2.2. CorrespondingCorresponding
3.3. Alt. InteriorAlt. Interior
1 4
2 3
5 8
6 7
Name a pair of:Name a pair of:
1.1. Vertical anglesVertical angles
2.2. CorrespondingCorresponding
3.3. Alt. InteriorAlt. Interior
1 4
2 3
5 8
6 7
1 and 3, 2 and 4 5 and 7, 6 and 8
1 and 5, 2 and 6 1 and 5, 2 and 6 3 and 7, 4 and 83 and 7, 4 and 8
2 and 8, 3 and 52 and 8, 3 and 5
Name a pair of:Name a pair of:
1.1. Alt. ExteriorAlt. Exterior
2.2. SupplementarySupplementary1 4
2 3
5 8
6 7
Name a pair of:Name a pair of:
1.1. Alt. ExteriorAlt. Exterior
2.2. SupplementarySupplementary1 4
2 3
5 8
6 7
1 and 7, 4 and 61 and 7, 4 and 6
1 and 4, 4 and 3, 1 and 4, 4 and 3, 3 and 2, 1 and 2, 3 and 2, 1 and 2, 5 and 8, 8 and 7, 5 and 8, 8 and 7, 7 and 6, 6 and 57 and 6, 6 and 5
Find all angle measuresFind all angle measures
1
3
t
113
2
5
6 7
8
113
113
113
Find all angle measuresFind all angle measures
1 67
3
t
113
180 - 67
2
5
6 7
8
67
67
67
113
113
113
HomeworkHomework
Page 808 #1-11Page 808 #1-11
Test tomorrow!Test tomorrow!
All late work due tomorrow!All late work due tomorrow!