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Parts of a Circle

Parts of a Circle. You Should Already Know These. Radius- Line from the middle to the outside Diameter- Line all the way across the circle cutting in in half Circumference- All the way around the circle. Tangent. The tangent line touches the outside in only one spot. Tangent line. Secant.

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Parts of a Circle

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  1. Parts of a Circle

  2. You Should Already Know These • Radius- Line from the middle to the outside • Diameter- Line all the way across the circle cutting in in half • Circumference- All the way around the circle

  3. Tangent • The tangent line touches the outside in only one spot Tangent line

  4. Secant • The secant line passes through two points of the circle Secant line

  5. Chord • A chord connects two points without going through. Chord

  6. Central Angle • Angle with a vertex at the center of the circle Central Angle

  7. Arc • The arc is the part of the circumference inside the central angle Arc

  8. Let’s see what you remember

  9. Closure • What is the tangent line?

  10. Closure • What is the secant line?

  11. Closure • What is a chord?

  12. Closure • What is a central angle?

  13. Closure • What is an arc?

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