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Geometry · Circles

Circle diameter 10

5

Step by step

  1. r = 5

    Everything about a circle follows from its radius.

  2. d = 2r = 10

    Diameter.

  3. C = 2\pi r = 10 \pi \approx 31.416

    Circumference.

  4. A = \pi r^2 = 25 \pi \approx 78.540

    Area.

Reveal the answer
C = 10 \pi,\quad A = 25 \pi