GED Math Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is the circumference of a circle with a diameter of 10 cm? (Use π = 3.14)

31.4 cm

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

\[ \text{Circumference} = \pi \times \text{diameter} \]

In this scenario, the diameter of the circle is given as 10 cm. By substituting the values into the formula, we get:

\[ \text{Circumference} = 3.14 \times 10 \]

Calculating this gives:

\[ \text{Circumference} = 31.4 \text{ cm} \]

This result aligns with the provided choice and confirms that the calculation is made using the correct value of π (approximated as 3.14). Understanding the method to calculate the circumference based on the diameter is essential, as it provides a clear relationship between these two measurements.

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15.7 cm

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