1. Pre-Algebra Enrichment
5-1 to 5-5 Review
Pre-Algebra Enrichment

2. Classifying Angles
Acute angle- An angle that measures less than 90 degrees.
Obtuse angle- An angle that measures more than 90 degrees and less that 180 degrees.
Right Angle- An angle that measures 90 degrees.

3. Question #1 If an angle is 180 degrees it is a(n)…
Right Angle
Straight Angle
Obtuse Angle
Acute Angle

4. Your answer was incorrect, please try again!
Sorry!
Your answer was incorrect, please try again!

5. Great job! It is a straight angle. Please continue.
Correct!
Great job! It is a straight angle. Please continue.

6. Classifying Triangles (based on sides)
Equilateral Triangle- A triangle with three equal sides
Isosceles Triangle- A triangle with at least two equal sides
Scalene Triangle- A triangle with no equal sides

7. Classifying Triangles (based on angles)
Right Triangle- A triangle containing a right angle
Acute Triangle- A triangle that has three acute angles
Obtuse Triangle- A triangle that has one obtuse angle and two acute angles
Equiangular Triangle- A triangle that has three equal angles

8. Question #1A If a triangle has three equal sides it is called…
Equiangular
Equilateral
Isosceles
Scalene

9. OOPS!
Sorry, that was incorrect, you better review your triangle information and then try again!

10. Congratulations!
You know your stuff! Continue on to further test your triangle knowledge.

11. Question #2 A triangle with an angle greater than 90 degrees is called…
An acute triangle
An isosceles triangle
An obtuse triangle
A right triangle

12. Your answer was incorrect, please try again!
Sorry!
Your answer was incorrect, please try again!

13. Great job! It is an obtuse triangle. Please continue.
Correct!
Great job! It is an obtuse triangle. Please continue.

14. Question #3 What kind of triangle is this:
Right Triangle
Scalene Triangle
Neither Right or Scalene
Both Right and Scalene

15. Remember to look at both the
Incorrect!
Please try again!
Remember to look at both the
sides and the angles!

16. The triangle is both right and scalene.
Correct!
Great job!
The triangle is both right and scalene.

17. General Triangle Properties
Triangles are three-sided polygons.
All triangles have an angle sum of 180 degrees based on the Triangle Sum Theorem.

18. Question #4 A triangle with 4 sides must have an angle sum of:
180
360
240
A triangle cannot have 4 sides.

19. OOPS!
You better look back
over the material!

20. No triangle can have 4 sides!
Excellent!
You can't be fooled!
No triangle can have 4 sides!

21. Question #5 What is the angle sum of:
360 degrees
180 degrees
270 degrees
There is no way of knowing what the angle
sum is.

22. Sorry!
You better try again!

23. Great Job! Correct, no matter what the triangle,
the angle sum will always be 180 degrees!

24. Angle Pairs:
Complementary Angles- angles that have measures that add to 90 degrees.
Supplementary Angles- angles that have measures that add to 180 degrees.

25. Question #6 The following angles are considered…
Complementary
Supplementary
Complementary and Supplementary
None of the Above

26. Sorry that is incorrect, remember the definitions that you learned.

27. The answer is complementary.
Correct!
Great Job!
The answer is complementary.

28. Question #7 A 6 sided figure is called what and has a degree measure of what?
Hexagon, 540
Hexagon, 720
Heptagon, 540
Heptagon, 720

29. OOPS!
Thats not right!
Please try again!

30. Excellent! You are correct! It is a hexagon with an angle sum
of 720 degrees.

31. Congruency
Congruent is another word for equal.

32. Question #8 The second angle of a triangle is two times the measure of the first angle. The third angle is 3 times the measure of the second angle what is the measure of each angle?
1st- 30º, 2nd- 60º, and 3rd- 90º
1st- 20º, 2nd- 40º, and 3rd- 120º
1st- 20º, 2nd- 60º, and 3rd- 100º

33. That answer is incorrect,
Sorry!
That answer is incorrect,
you better try again!

34. Great Job
You are right!

35. Question #9 If two sides of a triangle are said to be congruent that means that they are different lengths. True or False.
True
False

36. Are you sure this statement is true??
Incorrect
Are you sure this statement is true??
Please try again!

37. The sides would be the same if they were congruent, not different!
Correct
Great Job!
The sides would be the same if
they were congruent, not different!

38. Transversals of Parallel Lines
A transversal is a line that intersects any two or more other lines.
When a transversal intersects parallel lines the angles formed have the following properties:
1. All acute angles formed are congruent.
2. All obtuse angles formed are congruent.
3. Any acute angle is supplementary to any obtuse angle formed.

39. Question #10 What types of angles are 4 and 6?
Corresponding Angles
Alternate Interior Angles
Alternate Exterior Angles

40. OOPS!
You better look back
over the material!
Please try again!

41. The angles are Alternate Interior Angles.
Excellent!
Great Job!
The angles are Alternate Interior Angles.

42. Question #11 What types of angles are 2 and 6?
The angles are alternate
interior.
The angles are corresponding.
The angles are vertical.
Not enough information.

43. Wrong Answer
Look more carefully,
please try again!

44. The angles are corresponding.
Correct
Great Job!
The angles are corresponding.

45. Question #12 What types of angles are 1 and 7?
Vertical Angles
Corresponding Angles
Alternate Exterior Angles
Alternate Interior Angles

46. response. You better look
OOPS!
This is not the correct
response. You better look
back over the material.

47. These angles are alternate exterior angles.
Great Job!
You cannot be tricked!
These angles are alternate exterior angles.

48. Slope The slope of any line is: Vertical Change Horizontal Change
Which is the same as: Rise
Run

49. Question #13 What is the slope of the top line?-1 2 -2

50. This is not the right response.
Incorrect
This is not the right response.
Please try again.

51. The slope of this line is 1.
Correct
Great Job!
The slope of this line is 1.

52. Question #14 What is the slope of this line?1
Not enough information.

53. OOPS!
You better look over
this stuff a bit more
and try again.

54. horizontal line will always be 0.
Great Job
You are right!
The slope of any
horizontal line will always be 0.

55. Question # 15 What is the slope of this line?
Undefined -1
Not Enough Information

56. Sorry
That is not right,
you better try again!

57. vertical line is always
Excellent
Great Job!
The slope of any
vertical line is always
undefined.

58. The End! Congratulations! You should now be ready
for your quiz tomorrow!