1. Circles trivia game

2. Rules
Groups of 3-4
All members of the group must come up with the answer together (I can call on any member).
Once your group has the answer, every member must raise their hand silently.
First group to do this and answer correctly, gets a point.
Group with the most points wins.

3. Question one
What do you call a line segment in a circle that connects any two points on the circle?

4. Answer
A chord:

5. Question two
What is the area of a circle with a diameter measuring 5 cm?

6. Answer
Area: 78.5cm²

7. Question three
What is the radius of a circle whose circumference measures 40.2cm?

8. Answer
Radius: 6.4cm

9. Question four
Define the term sector of a circle.

10. Answer
Sector: portion of a disc’s area which is defined by its corresponding central angle.

11. Question five
What is the diameter of a circle whose area is 75.8 cm²?

12. Answer
Diameter: 9.8cm

13. Question six
What is the length of an arc whose central angle measures 72 degrees and whose radius is 8 m?

14. Answer
Arc length: 10.1m

15. Question seven
What is the area of a circle that has a sector area equal to 82.4cm with a central angle of 98 degrees?

16. Answer
Area: 302.7cm

17. Question eight
What do you call the interior of a circle?

18. Answer
A disc:

19. Question nine
Define the what the radius of a circle is.

20. Answer
Radius: line segment joining any point on a circle to its center.

21. Question 10
Find the area of a circle if its circumference is 37.7m.

22. Answer
Area: 113.1m