Parts of a Circle Examples

These lessons, with videos, examples and solutions help Grade 6 students learn the parts of a circle: radius, chord, diameter, secant, tangent, arc, major sector, minor sector, major segment, minor segment, concentric circles, semicircle, quadrant.

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Parts Of A Circle 1
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Parts of a Circle
A chord is a line segment whose endpoints are on a circle. A diameter is a chord that passes through the center of a circle. Another one of the parts of a circle is a radius, which is a line segment with one endpoint at the center and one endpoint on the circle. Congruent circles have congruent radii (the plural of radius). Concentric circles have the same center. A central angle has a vertex on the center and endpoints on the circle.

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