A circle has radius 3 units. What is its area in terms of π?

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Prepare for the Praxis Elementary Education: Three Subject Bundle – Mathematics (5903) Exam. Utilize flashcards and questions with explanations to ace your test! Enhance your mathematics skills for better results.

Multiple Choice

A circle has radius 3 units. What is its area in terms of π?

Explanation:
Area of a circle is found using A = π r^2. With a radius of 3, r^2 is 9, so A = π × 9 = 9π square units. This matches the answer that expresses the area in terms of π. The 9 would be the area if you forgot the π, and 18π or 27π would require a larger r (since they’d come from r^2 = 18 or r^2 = 27).

Area of a circle is found using A = π r^2. With a radius of 3, r^2 is 9, so A = π × 9 = 9π square units. This matches the answer that expresses the area in terms of π. The 9 would be the area if you forgot the π, and 18π or 27π would require a larger r (since they’d come from r^2 = 18 or r^2 = 27).

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