Ace the GED Math Test 2025 – Conquer Numbers and Unlock Your Future!

Question: 1 / 400

If the radius of a circle is 3 cm, what is the circumference? (Use π = 3.14)

9.42 cm

12.56 cm

18.84 cm

To find the circumference of a circle, you use the formula:

Circumference = 2πr

where r is the radius of the circle. In this case, the radius is given as 3 cm, and π is approximated as 3.14.

Substituting the values into the formula:

Circumference = 2 × 3.14 × 3

Calculating it step-by-step:

1. First, calculate 2 × 3.14, which equals 6.28.

2. Then, multiply 6.28 by 3 to find the circumference: 6.28 × 3 = 18.84 cm.

Thus, the correct answer, based on the calculations, is indeed 18.84 cm. This value directly results from applying the formula for the circumference of a circle accurately with the provided radius and the value of π.

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25.12 cm

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