College Algebra CLEP Prep Practice Exam

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Prepare for the College Algebra CLEP Test with our comprehensive practice exam. Study with flashcards and multiple choice questions, each offering clues and detailed explanations. Achieve your best score and excel in your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the formula for the area of a circle?

A = π*r
A = π*r^2
A = π*r/2
A = 2π*r

The correct answer is: A = π*r^2

The formula for the area of a circle is A = π*r^2. This formula represents multiplying the radius of the circle squared by the number π (pi). This is because the area of a circle is equal to the radius multiplied by itself (squared) times pi. The other options are incorrect because they either involve dividing the radius by 2 (option C) or multiplying it by 2π (option D), which are not the correct methods for finding the area of a circle. Option A also does not account for the need to square the radius. Therefore, option B is the only correct choice.