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katlin95

  • 3 years ago

use the illustration below to calculate the circumfrence of the circle. A. 75.4 cm B. 24 cm C. 37.7 cm D. 452.4 cm

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  1. katlin95
    • 3 years ago
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    |dw:1364960090111:dw|

  2. Hope_nicole
    • 3 years ago
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    what is the equation for circumference?

  3. katlin95
    • 3 years ago
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    their is no equation

  4. some_someone
    • 3 years ago
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    The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle.

  5. some_someone
    • 3 years ago
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    If a circle has a diameter of 4, its circumference is 3.14*4=12.56

  6. some_someone
    • 3 years ago
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    If you know the radius, the diameter is twice as large.

  7. some_someone
    • 3 years ago
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    You have enough info @katlin95 to work it out on your own for once :)

  8. katlin95
    • 3 years ago
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    its B

  9. katlin95
    • 3 years ago
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    is that the right answer guys?

  10. some_someone
    • 3 years ago
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    Circumference = 2 • π • radius = π • diameter Circle Area = π • r² = ¼ • π • d²

  11. katlin95
    • 3 years ago
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    yea its B

  12. katlin95
    • 3 years ago
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    nevermind its C

  13. some_someone
    • 3 years ago
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    A. 75.4 cm

  14. MsSmiley123
    • 3 years ago
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    A

  15. some_someone
    • 3 years ago
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    they give you 12 cm aka the RADIUS!

  16. some_someone
    • 3 years ago
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    Circumference = 2 • π • radius = 2 • π • 12 = 75.39 = 75.4

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