College Math CLEP Prep Practice Exam 2026 - Free College Math CLEP Practice Questions and Study Guide

Question: 1 / 400

What is the area of a circle with radius 5 cm?

25 cm^2

50 cm^2

78 cm^2

Since the radius of a circle is half of the diameter, the formula for finding the area of a circle is πr^2. So, using the given radius of 5 cm, we get

Area = π(5cm)^2 = 25π cm^2 ≈ 78.5 cm^2

Options A, B, and D are incorrect because they do not use the correct formula to calculate the area of a circle. Option A uses the incorrect value of just the radius instead of squaring it. Option B uses the incorrect value of the diameter instead of the radius. Option D uses 100 as the area, which is more likely the diameter rather than the radius. Hence, the correct answer is C - 78 cm^2.

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100 cm^2

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