If a circle has radius 7 cm, what is its circumference? Use pi ≈ 3.14.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare for the Navy Academic Proficiency Test. Enhance your skills with interactive questions and explanations to improve your performance on test day. Boost your confidence and readiness for success!

Multiple Choice

If a circle has radius 7 cm, what is its circumference? Use pi ≈ 3.14.

Explanation:
This question uses the relationship between a circle’s radius and its circumference: C = 2πr. With a radius of 7 cm and π ≈ 3.14, the circumference is C ≈ 2 × 3.14 × 7 = 6.28 × 7 = 43.96 cm. You can also use the diameter (d = 14 cm) with C = πd, giving the same result: 3.14 × 14 = 43.96 cm.

This question uses the relationship between a circle’s radius and its circumference: C = 2πr. With a radius of 7 cm and π ≈ 3.14, the circumference is C ≈ 2 × 3.14 × 7 = 6.28 × 7 = 43.96 cm. You can also use the diameter (d = 14 cm) with C = πd, giving the same result: 3.14 × 14 = 43.96 cm.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy