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Mathematics

7th

grade

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Circles: Circumference and Area

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16 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
    A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?
    c = 15π
    c = 2π15
    c = π(15²)
    c = π(7.5²)
  • 2. Multiple Choice
    1.5 minutes
    1 pt
    Image
    Find the area of the circle below.
    113.04 cm units²
    18.84 cm units²
    9 cm units²
    28.26 cm units²
  • 3. Multiple Choice
    1.5 minutes
    1 pt
    Image
    What is the diameter of this circle?
    3.5
    6.5
    6
    7
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