The topics in this unit focus on understanding partial circle area and circumference. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Circle - Area and Equation to Diameter (Pi Value)

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


If the area of this circle is 6, what it its diameter?

A=π(d2)26=π(d2)2A=\pi \cdot (\frac{d}{2})^2 \\ 6=\pi \cdot (\frac{d}{2})^2

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