Find the diameter/radius
If the radius is 50, what is the diameter?
Diameter would be 100
What is a chord?
A segment whose endpoints are on the circle.
What is a minor arc?
An arc less than a semicircle.
How do you find the circumference?
C=2(Pi)2
If the diameter is 67, what is the radius?
Radius would be 33.5
What is diameter?
A line that goes through the center of the circle.
Whats a semicircle?
An arc with endpoints of a diameter (half of the circle).
How do you find arc length?
Arc measure/360*2(Pi)r
If the radius is 46.5, what is the diameter?
Diameter would be 93
What is radius?
The distance from the center to a point of the circle.
What is a major arc?
An arc that is more than a semicircle.
How do you find Area?
(Pi)r2
If the radius is 389.5, what is the diameter?
Diameter would be 779
What is secant?
A line that intersects a circle in two points and keeps going.
What is a center angle?
A angle whose vertex is at the center of the circle.
What is the equation for circles?
(x-h)2+(y-k)2=r2