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Problem 16 - Entrance Test

What is the area of the ellipse x^2/9 + y^2/4 = 1?

Correct: C

The equation of an ellipse is x^2/a^2 + y^2/b^2 = 1. The area of the ellipse is πab. In this case, a = 3 and b = 2. The area is π(3)(2) = 6π.