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11 May, 17:03

Find the area and perimeter or circumference of each figure:

a. Circle with radius 3 cm.

b. Circle with diameter 10 feet.

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Answers (2)
  1. 11 May, 17:11
    0
    Do Circumfrence over diameter then add pi? I think
  2. 11 May, 17:13
    0
    A) area: 3^2pi = 9pi cm or 28.27 cm

    Perimeter / circumference: 2*3pi = 6pi cm or 18.85 cm

    b) 10/2 = 5 (radius)

    area: 5^2pi = 25pi feet or 78.54 feet

    Perimeter/circumference: 2*5pi = 10pi feet or 31.42 feet
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