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All About Circles

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Page 1: All About Circles Circles are everywhere! OP is the radius of the circle

All About Circles

Page 2: All About Circles Circles are everywhere! OP is the radius of the circle

Circles are everywhere!

Page 3: All About Circles Circles are everywhere! OP is the radius of the circle

OP is the radius of the circle

Page 4: All About Circles Circles are everywhere! OP is the radius of the circle

radius: distance from center of circle to any point

on it.

Page 5: All About Circles Circles are everywhere! OP is the radius of the circle

Do circles have more than one

radius?

Yes! They have many radii!

Page 6: All About Circles Circles are everywhere! OP is the radius of the circle

The diameter= 2 times the radius

AB is the diameter

Page 7: All About Circles Circles are everywhere! OP is the radius of the circle

diameter:the longest

distance from one end of a circle to

the other.

Page 8: All About Circles Circles are everywhere! OP is the radius of the circle

If OB is 8, what is the length of AB?

Page 9: All About Circles Circles are everywhere! OP is the radius of the circle

CD is a Chord!

Page 10: All About Circles Circles are everywhere! OP is the radius of the circle

chord: a line segment within a

circle that touches 2 points on the

circle.

Page 11: All About Circles Circles are everywhere! OP is the radius of the circle

FZ is a Tangent

Page 12: All About Circles Circles are everywhere! OP is the radius of the circle

tangent of circle: a line perpendicular

to the radius that touches ONLY one point on the circle

Page 13: All About Circles Circles are everywhere! OP is the radius of the circle

Angle OFC = 90 degrees!

Page 14: All About Circles Circles are everywhere! OP is the radius of the circle

line MR is a Secant

Page 15: All About Circles Circles are everywhere! OP is the radius of the circle

A secantsecant is a line intersectingintersecting a

circle at two two points.points.

Page 16: All About Circles Circles are everywhere! OP is the radius of the circle

Time for a quiz…

Page 17: All About Circles Circles are everywhere! OP is the radius of the circle
Page 18: All About Circles Circles are everywhere! OP is the radius of the circle
Page 19: All About Circles Circles are everywhere! OP is the radius of the circle
Page 20: All About Circles Circles are everywhere! OP is the radius of the circle
Page 21: All About Circles Circles are everywhere! OP is the radius of the circle
Page 22: All About Circles Circles are everywhere! OP is the radius of the circle

Good Job!

Page 23: All About Circles Circles are everywhere! OP is the radius of the circle

Thank you Mrs. Guest-

JohnsonCopyright 2006


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