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

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Question: 1 / 400

If the diameter of a circle is 10 units, what is the radius?

2.5 units

5 units

The radius of a circle is defined as half of its diameter. Therefore, to find the radius when the diameter is given, you simply divide the diameter by 2.

In this case, the diameter is 10 units. By dividing this value by 2, you get:

Radius = Diameter / 2 = 10 units / 2 = 5 units.

This confirms that the radius is 5 units, making this option the correct answer. Understanding the relationship between the diameter and radius is fundamental, as it allows you to calculate the radius of any circle when the diameter is known.

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