all about circles circles are everywhere! op is the radius of the circle
TRANSCRIPT
All About Circles
Circles are everywhere!
OP is the radius of the circle
radius: distance from center of circle to any point
on it.
Do circles have more than one
radius?
Yes! They have many radii!
The diameter= 2 times the radius
AB is the diameter
diameter:the longest
distance from one end of a circle to
the other.
If OB is 8, what is the length of AB?
CD is a Chord!
chord: a line segment within a
circle that touches 2 points on the
circle.
FZ is a Tangent
tangent of circle: a line perpendicular
to the radius that touches ONLY one point on the circle
Angle OFC = 90 degrees!
line MR is a Secant
A secantsecant is a line intersectingintersecting a
circle at two two points.points.
Time for a quiz…
Good Job!
Thank you Mrs. Guest-
JohnsonCopyright 2006