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

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All late work due tomorrow!All late work due tomorrow!