Workkeys Math Practice Test 2026 – The All-in-One Guide to Mastering Math Skills for Exam Success!

Question: 1 / 400

What is the circumference of a circle with a radius of 7 cm? (Use π ≈ 3.14)

21.98 cm

43.96 cm

To find the circumference of a circle, the formula used is C = 2πr, where "C" represents the circumference, "π" is a constant approximately equal to 3.14, and "r" is the radius of the circle.

In this case, the radius is given as 7 cm. Plugging this value into the formula, we calculate the circumference as follows:

C = 2 * π * r

C = 2 * 3.14 * 7

First, we multiply 2 and 7:

2 * 7 = 14

Next, we multiply this result by π:

14 * 3.14 = 43.96

Therefore, the circumference of the circle with a radius of 7 cm is 43.96 cm. This matches the choice provided.

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49.08 cm

50.24 cm

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