A circle has a diameter of 6 inches. What is its approximate area using pi as 3.14?

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Prepare for the Local 483 Apprenticeship Exam. Utilize flashcards and multiple-choice questions, with hints and explanations for each. Get exam-ready today!

Multiple Choice

A circle has a diameter of 6 inches. What is its approximate area using pi as 3.14?

Explanation:
Area is found using the formula A = πr^2. The diameter is 6 inches, so the radius is half of that, 3 inches. With π approximated as 3.14, the area is 3.14 × 3^2 = 3.14 × 9 = 28.26 square inches. Rounded to one decimal place, that’s about 28.3 square inches. This is the value that matches the option given for approximately 28.3 square inches. The other numbers would come from using a different radius or a different rounding, which doesn’t apply to a circle with diameter 6 inches and π ≈ 3.14.

Area is found using the formula A = πr^2. The diameter is 6 inches, so the radius is half of that, 3 inches. With π approximated as 3.14, the area is 3.14 × 3^2 = 3.14 × 9 = 28.26 square inches. Rounded to one decimal place, that’s about 28.3 square inches. This is the value that matches the option given for approximately 28.3 square inches. The other numbers would come from using a different radius or a different rounding, which doesn’t apply to a circle with diameter 6 inches and π ≈ 3.14.

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