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The area enclosed by the ellipse $x^2/a^2 + y^2/b^2 = 1$ is:
A$\pi r^2$, the area of a circle of radius $r$ on chart
B$\pi ab$, the product of axes multiplied by $\pi$
C$4\pi ab$, four times the correct value on the chart
D$ab$, the simple product without $\pi$ on the chart here
Answer & Solution
Correct answer: B. $\pi ab$, the product of axes multiplied by $\pi$
The area of the ellipse $x^2/a^2 + y^2/b^2 = 1$ is $\pi ab$.
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