![card image](../uploads/187/16/_1cc51bdd_14cb6b455dd__8000_00008048.png)
What is the circumference of this circle equal to?
C = 2(pi)r = (pi)d
![card image](../uploads/188/17/_1cc51bdd_14cb6b455dd__8000_00008050.png)
What is the area of this circle?
A = (pi) r2
![card image](../uploads/189/18/_1cc51bdd_14cb6b455dd__8000_00008086.png)
Find the area of this circle.
A = (pi)*36
![card image](../uploads/190/19/_1cc51bdd_14cb6b455dd__8000_00008084.png)
Find the circumference of this circle.
C = 12(pi)
![card image](../uploads/191/20/_1cc51bdd_14cb6b455dd__8000_00008052.jpg)
What is the arc measure, in degrees?
ao
![card image](../uploads/192/21/_1cc51bdd_14cb6b455dd__8000_00008054.jpg)
What is the arc length?
arc length = a/360 (2)(pi)r = a/360 (pi)d
![card image](../uploads/193/22/_1cc51bdd_14cb6b455dd__8000_00008056.png)
If AB = 12 and BC = 5, what equation can you use to find the diameter, d?
52 + 122 = d2
![card image](../uploads/194/23/_1cc51bdd_14cb6b455dd__8000_00008058.jpg)
What is the correct equation to find x, if x is the length of AC?
52 + 82 = x2
![card image](../uploads/195/24/_1cc51bdd_14cb6b455dd__8000_00008060.png)
What is the arc measure of the intercepted arc?
2xo
![card image](../uploads/196/25/_1cc51bdd_14cb6b455dd__8000_00008064.jpg)
What is the measure of <a?
a = 1/2 (y - x)
![card image](../uploads/197/26/_1cc51bdd_14cb6b455dd__8000_00008066.png)
Find x.
x = 60o
![card image](../uploads/198/27/_1cc51bdd_14cb6b455dd__8000_00008070.png)
Find x.
x = 1/2 (80 - 20) = 1/2 (60) = 30
![card image](../uploads/199/28/_1cc51bdd_14cb6b455dd__8000_00008076.jpg)
What is the correct equation to solve for a?
12a = 8(10)
![card image](../uploads/200/29/_1cc51bdd_14cb6b455dd__8000_00008078.png)
What is the correct equation to solve for x ?
18(x + 18) = 16(16 + 24)
![card image](../uploads/201/30/_1cc51bdd_14cb6b455dd__8000_00008080.png)
What is the equation for this circle?
(x - h)2 + (y - k)2 = r2
![card image](../uploads/202/31/_1cc51bdd_14cb6b455dd__8000_00008082.jpg)
What is the equation for this circle?
(x - 4)2 + (y + 2)2 = 16