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The radius of a quarter circle is 3 kilometers. What is the quarter circle's area?

Use 3.14 for ​𝜋 and round your answer to the nearest hundredth.

Nov 6, 2022

The formula for a circle is $$\pi r^2$$ so the formula for a quarter circle would be $$\frac{1}{4}\pi r^2$$. If $$\pi$$ is 3.14, and the radius is 3 km, then your answer would be $$\frac{1}{4} \cdot 3.14 \cdot 3^2$$, or 7.065 km^2, which, rounded to the nearest hundredth, would be 7.07 km^2.