parts of a circle
TRANSCRIPT
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CIRCLE AND ITS PARTS
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WHAT IS A CIRCLE ??
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A circle is a closed curve formed by a set of points on a plane that are equidistant from its center.
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IS THE CENTER PART OF A CIRCLE ?
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Read again the definition.
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PARTS OF A CIRCLE
•Radius•Diameter•Chord•Tangent Line
•Secant Line•Central Angle•Inscribed Angle
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BACK
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The radius of the circle is a straight line drawn from the center to the boundary line or the circumference. The plural of the word radius is radii.
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The diameter is the line crossing the circle and passing through the center. It is the twice of the length of the radius.
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The tangent line is any segment, which if extended in either direction, will only intersect the circle once.
The point at which it touches is called the point of tangency.
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SECANT LINE
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A secant line is a segment or line which passes through a circle, intersecting at two points
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CHORD
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A chord is a line segment with both endpoints on the circle. The diameter is a special chord that passes through the center of the circle.
The diameter would be the longest chord in the circle.
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CENTRAL ANGLE
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A central angle is an angle in a circle with vertex at the center of the circle.
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INSCRIBED ANGLE
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An inscribed angle is an angle formed by three points on a circle
Insc
ribed
Angle
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