1. Central Angle
Click In
This
Box To
Get
Started
Title page goes to q1

2. Let’s start by reviewing what you know!
If you have two angles that together form a right angle and you know the measure of one of them, can you find the other?
Click on the correct answer.
Find x.
40° x°
X = 90°
X = 50°
X = 40°

3. No. Let’s review right angles.
Click to continue.

4. Great start!
Click to continue.

5. Review Right angles and Angles that add up to 90 degrees
A Right angle is 90°.
30° + 60° = 90°.
30°
R1 returns to Q1
Review Solving complementary angle problem
90°
60°

6. What are these angles called?
What do we call two angles that add up to 90°?
40° x°
Complementary Angles
Supplementary Angles
Right Angles
Click on the correct answer.
C vCS1 wrong S1 correct
Complimentary Vocab

7. No. Let’s review vocabulary.
Click to continue.

8. Way
to go!
Click to continue.

9. Vocabulary Complementary angles are two angles that add up to 90°.
Supplementary angles are two angles that add up to 180°.
Right angles are angles that equal 90°.
vCS1 return to C
Vocab review Complimentary/Supplementary

10. More review of what you know!
If you have two angles that together form a straight angle and you know the measure of one of them, can you find the other?
Click on the correct answer.
Z = 90°
Z = 130°
Z = 40°
Find z.
Z = 50° z°
S1 in s2 correct or R2 wrong
Solve supplementary angle problem
50°

11. No. Let’s review straight angles.
Click to continue.

12. You’re a star!
Click to continue.

13. Review straight angles and Angles that add up to 180 degrees
A straight angle is a straight line. A straight angle equals 180°.
Two angles that together form a straight angle add up to 180°.
R2 return to s1 review of supplementary angle problem
110° + 70° = 180°
110°
70°

14. What are these angles called?
Click on the correct answer.
What do we call two angles that add up to 180°?
Complementary Angles
Supplementary Angles
Right Angles z°
50°
S2 O correct vCS2 wrong

15. No. Let’s review vocabulary.
Click to continue.

16. You’ve got it!
Click to continue.

17. Vocabulary Complementary angles are two angles that add up to 90°.
Supplementary angles are two angles that add up to 180°.
Right angles are angles that equal 90°.
vCS1 return to C
Vocab review Complimentary/Supplementary

18. Click on the correct answer.
Circle review
How many total degrees are there in a circle?
90°
360°
180°
60°
O Or1 wrong CA1 correct
Degrees in a circle

19. No. Let’s review circles.
Click to continue.

20. You’re on a roll!
Click to continue.

21. Circle facts A circle is named by its center point.
A circle is defined as all points equidistant from a center point.
A circle has a total of 360°.
Or1 return to O
Circle review

22. Click on the correct answer.
Central angle
Find y.
90°
360° y°
180°
60°
CA1 CAr2 wrong CA2 correct

23. No. Let’s learn about
Central Angles.
Click to continue.

24. You’re the boss!
Click to continue.

25. What is a Central angle
A Right angle is 90°.
If you put a Right angle in the center of a circle it is still 90°.
90°
90°
A Central Angle is an angle with its vertex in the center of a circle.
CAr2 return to CA1
Explain moving right angle into a circle with the vertex at the center of the circle

26. Straight Central angle
Find m.
Click on the correct answer.
90°
360° m° n°
180°
60°
CA CAr3 wrong CA3 correct

27. No. Let’s learn more about
Central Angles.
Click to continue.

28. You’re a rock star!
Click to continue.

29. This straight angle is a diameter
A Straight angle is 180°.
If you put a Straight angle that crosses through the center of a circle is still 180°.
n = 180°.
m = 180°.
n + m = 360°
The straight angle (diameter) cuts the circle in half. m° n°
CAr3 return to CA2
Explain moving straight angle through the center of the circle is still 180 degrees

30. Click on the correct answer.
More Central angles
Click on the correct answer.
A Central Angle is an angle with its vertex in the center of a circle.
Find t.
90° t°
360°
30°
240°
240°
CA3 correct CA4 wrong CAr4
Straight angle in the middle of a circle
The sum of all of the Central Angles of a circle is 360°.

31. No. Let’s learn a little more about
Central Angles.
Click to continue.

32. You’re a Central Angle star!
Click to continue.

33. Calculating Central angles
This circle has three central angles.
The total of the three angles must be 360°. t°
A Central Angle is an angle with its vertex in the center of a circle.
90°
210°
CAr4 return CA3
Explain total = 360
90° + 210° + t = 360°

34. Email your answer to Ms. Lin
Challenge!
your answer to Ms. Lin @
before midnight.
Find q.
50° q°
CA4 Final answer to Mrs. Lin
Straight angle in the middle of a circle
Finish

35. Thank you for playing TY

36. Central Angle Click Click In Arrow This To Box Return To Get Where
Started
Click
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You
Were
Title page goes to q1