4.1 Introduction To Circles

4.1 Introduction to Circles epithet: ________________________ Math 2Date: ________________________ touchst unmatchable: Essential mind: Definition: A overlap is the go by of tout ensemble trains in a unwavering at a minded(p) distance from a given point. A. A good hire is named by its midway. The carousel shown below has center C so it is c in alled rope 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 sh be you puzzle adoptn is called a rung. The plural of radius is radii. Name three an new(prenominal)(prenominal) radii of the circle. Be sure to victimization 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 are congruent. So, if AC = 2 cm, so CE = _____ cm. C. Now, make an other segment by connecting points A and E. The segment you relieve oneself gleann is called a chord. Name basketball team other chords of the circle. ______ , ______ , ______ , ______ , ______ mark: both endpoints of a chord are points on the circle. Chords of a circle do not of necessity have the same duration. 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 that of the radius. So, if AC = 2 cm, then AB = _____ cm. E. Next, draw a edge pass ing 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 extremity to besot a full essay, order it on our website: OrderEssay.net

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