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Math
Geometry
Circles in Geometry
Circular Areas
Area of a Circle: Why Quadratic?

Practice problem

Area of a Circle: Why Quadratic?

By MMark Paulson

The diameter of the above (world-class, apparently) frisbee is $10$ inches. What is the area of its face?

Choose one answer

Option A: A

$25\pi$

Option B: B

$100\pi$

Option C: C

$5\pi^2$

Option D: D

$10\pi^2$

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