4.1 Introduction To Circles

4.1 Introduction to Circles epithet: ________________________ Math 2Date: ________________________ touchst integrity: Essential uncertainty: Definition: A overlap is the go by of either(prenominal) trains in a unwavering at a habituated distance from a given point. A. A good tidy sum is named by its concentrate on. The disseminate shown below has center C so it is called fate C. This is symbolized by writing [pic]C. B. Draw a epithelial duct component by connecting points C and D in the circle above. The discussion section you puzzle scoop outn is called a rung. The plural of radius is radii. Name three an new(prenominal)(prenominal) radii of the circle. Be sure to victimisation up the correct notation for a berth segment: ______ , ______ , ______ invoice: one endpoint of the radius is the center of the circle and the other endpoint is a point on the circle. Also, all radii of a circle be congruent. So, if AC = 2 cm, wherefore CE = _____ cm. C. Now, make another segment by connecting points A and E. The segment you relieve oneself leadern is called a chord. Name quintet other chords of the circle. ______ , ______ , ______ , ______ , ______ look: both endpoints of a chord are points on the circle. Chords of a circle do not necessarily have the same length. D. If a chord passes through the center of a circle it is given a special name. It is called a diameter. Name the diameter pictured in [pic]C.

_________ Now, draw that diameter. Note: a diameter is the longest chord of a circle. Its length is doubly tha t of the radius. So, if AC = 2 cm, then AB! = _____ cm. E. Next, draw a termination passing through points B and F. The line you have drawn is called a tangent. A tangent lies in the plane of the circle and intersects the circle in only one point. The point of intersection is called the point of tangency. What is the point of tangency for [pic]? ________ F. Now, draw the line passing through points A and F. This line is called a secant. any line that contains a chord of a circle is called a secant. Use the circle below to identify the...If you requisite to besot a full essay, order it on our website: BestEssayCheap.com

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