If the distance across a tank is 8 feet, what is the radius?

Prepare for the NCCR Insulation Test with flashcards and multiple choice questions, each with hints and explanations. Ace your exam and boost your career opportunities!

Multiple Choice

If the distance across a tank is 8 feet, what is the radius?

Explanation:
In a circle, the distance across from one edge to the opposite edge is the diameter, and the radius is half of that diameter. With a diameter of 8 feet, the radius is 8 ÷ 2 = 4 feet, or 4.0 ft. The other numbers wouldn’t fit because 2.0 ft would require a smaller diameter, 8.0 ft would be the diameter itself, and 3.9 ft isn’t half of 8 ft.

In a circle, the distance across from one edge to the opposite edge is the diameter, and the radius is half of that diameter. With a diameter of 8 feet, the radius is 8 ÷ 2 = 4 feet, or 4.0 ft. The other numbers wouldn’t fit because 2.0 ft would require a smaller diameter, 8.0 ft would be the diameter itself, and 3.9 ft isn’t half of 8 ft.

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