1. **Test moved to tomorrow!**
Agenda 4/17
Grade review packet, questions?
Luck of the draw activity
**Test moved to tomorrow!**

2. Problem 1
On a pizza, the crust represents the ______________ of the pizza and the crust of the slices represents the _______________________.
Circumference, arc length

3. Problem 2
A ________________ is exterior of a circle and is perpendicular to either a radius or a diameter.
Tangent

4. Problem 3
Your friend wants you to help paint polka dots in your bedroom. She wants to figure out how much paint she would need to create these circles. You suggest that she finds the ______________ of each circle and add it up.
area

5. Problem 4
The __________________ and the measure of the arc are the same measurement.
Central angle

6. Problem 5
Find m 𝑀𝑁  M R N P Q
63
82 O 63

7. Problem 6
Find m 𝑁𝑄𝑅
180

8. Problem 7
Find m 𝑄𝑀𝑅
297

9. Problem 8
Find m∠D D A B C
83
81
109 82

10. Problem 9
Find m∠B 98

11. Problem 10
Find m 𝐶𝐵 P B A D E
70 C 70

12. Problem 11
Find m 𝐵𝐷 40

13. Problem 12
Find m∠CED 55

14. Problem 13
The diameter of a circular swimming pool is 15 feet. Find the exact circumference and area of the top of the pool. Label your answers and use appropriate units.
C = 15π
A = 56.25π

15. Problem 14
Points X and Y lie on ⨀P so that PX = 5 meters and 𝑚∠𝑋𝑃𝑌 = 90°. Find the exact length of 𝑋𝑌 .
2.5π

16. Problem 15
Jamie shades in a sector of a circle defined by a central angle of 12° with radius 4.3 inches. Find the area of the shaded sector.
≈0.62π

17. Problem 16
Find YB if the diameter of ⨀A is 10 inches, the diameter of ⨀B is 8 inches, and AX = 3 inches.
YB = 2

18. Problem 17 𝐸𝐹 and 𝐹𝐺 are tangent to the circle. Solve for x. 10.5 E

19. Problem 18
P is the center, AB = 18 m, PQ = 12 m. What is the length of the radius? A B P R Q 15

20. Problem 19
Write the equation of a circle that goes through (2, 4) with a center located at (–2, 1). 𝑑= ( 𝑥 2 − 𝑥 1 ) 2 + ( 𝑦 2 − 𝑦 1 ) 2
(𝑥+2) 2 + (𝑦−1) 2 =25

21. Problem 20
Write the equation of a circle that has a radius of 6 if the center is (–3, 4).
(𝑥+3) 2 + (𝑦−4) 2 =36

22. Problem 21
Take the following equation and place in standard form and find the center and radius. 𝑥 2 −6𝑥+ 𝑦 2 −2𝑦−6=0
(𝑥−3) 2 + (𝑦−1) 2 =16

23. Problem 22
Find 𝑚∡𝑃𝑆𝑄 if 𝑚∡𝑃𝑆𝑄=(3𝑦−10)o and 𝑚∡𝑃𝑅𝑄=(2𝑦+10)o. 50