College Math CLEP Prep Practice Exam

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Unlock your mathematical potential and conquer the College Math CLEP exam with ease! Introducing our powerful College Math CLEP Prep Practice Exam, your ultimate tool for exam readiness.

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 area of a circle with diameter of 10 units?

25π
78.54
15π
50π

The correct answer is: 50π

The area of a circle is found by using the formula A = πr², where r is the radius. Since the diameter is 10 units, the radius is half that, which is 5 units. Plugging this into the formula, we get A = π(5)² = 25π. While option A (25π) is equal to this, it is not the correct choice as it represents the area of a circle with a radius of 5 units, not a diameter of 10 units. Option B (78.54) and C (15π) are incorrect as they are not related to the formula for finding the area of a circle. Option D (50π) is the correct choice as it represents the area of a circle with a radius of 10 units, which is what we are looking for.