Circumference/Area
Circumference is the _____________ of a circle.
Perimeter
A central angle is angle with a vertex at the __________ of the circle and its two sides are _______.
center; radii
Solve for x.
13
A tangent line intersects a circle at ______ point, called the _______________________.
one; point of tangency
Find the area and circumference of the circle.
A = 63.62 mm squared
C = 9pi or 28.27 mm
Find the length of the bolded arc.
4.58 inches
Find the measure of arc RS
71 degrees
Find x.
14
Find the diameter of a circle with an area of 415. 48 square inches.
23 inches
Find x
6
Find x
13
Is Segment RQ tangent to the circle?
Yes
Name a minor arc, major arc, semicircle, diameter, and radius
Answers will vary.
Solve for x.
21
Find VW
24
Find the center and radius of each circle given its equation.
(9,4) 20
(-1, 1) 16
(-6, 0) 9.5
Name:
Tangent
Secant
Point of Tangency
Inscribed Angle
Central Angle
Answers will vary.
If WS is 4.5 inches, find the length of arc TS.
7.62 inches
214 degrees
Write an equation of circle given this information. It must be simplified.
(x+2)^2+(y+11)^2=81
(x+4)^2+y^2=47