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Identifying parts of the circle
Circles Identifying parts of the circle
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Vocabulary Radius Chord Diameter Arc Center
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Center and Arc B C — A A circle can be named by its center. A circle with a center labeled C would be named circle C. An unbroken part of a circle is called an arc.
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Radius A radius connects the center with a point on the circle.
radius CD D C —
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A chord connects two points on a circle. chord AB
— B — A
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diameter A diameter is a chord that passes through the center of a circle. diameter AB A — — B
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Lesson Quiz Use the given diagram for the following:
1. Name two radii. 2. Name two chords. 3. Name the center of the circle. 4. Name a diameter. 5. Name an arc of the circle. H A — G J E D F C B K
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