A circle has radius 5 units. What is its circumference in terms of π?

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 Praxis Elementary Education: Three Subject Bundle – Mathematics (5903) Exam. Utilize flashcards and questions with explanations to ace your test! Enhance your mathematics skills for better results.

Multiple Choice

A circle has radius 5 units. What is its circumference in terms of π?

Explanation:
The circumference relates to the radius through the formula C = 2πr. With a radius of 5, substitute into the formula: C = 2π(5) = 10π. That factor of 2 in front of πr is what makes the circumference larger than π times the radius alone, so 10π is the correct result. Misplacing or omitting that factor of 2, or confusing radius with diameter, can lead to other values.

The circumference relates to the radius through the formula C = 2πr. With a radius of 5, substitute into the formula: C = 2π(5) = 10π. That factor of 2 in front of πr is what makes the circumference larger than π times the radius alone, so 10π is the correct result. Misplacing or omitting that factor of 2, or confusing radius with diameter, can lead to other values.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy