Which term describes the distance around the boundary of a circle or object?

Study for the ARRT Ultrasound Test. Utilize flashcards and multiple choice questions, each question includes hints and explanations. Prepare effectively for your exam!

Multiple Choice

Which term describes the distance around the boundary of a circle or object?

Explanation:
The distance around the boundary of a circle is called the circumference. Think of wrapping a string around the edge—the length of that string equals the circumference. It’s related to the circle’s size by C = 2πr or C = πd. The inside space of the circle is its area (A = πr^2), while compression and cycle describe other concepts not about the boundary length.

The distance around the boundary of a circle is called the circumference. Think of wrapping a string around the edge—the length of that string equals the circumference. It’s related to the circle’s size by C = 2πr or C = πd. The inside space of the circle is its area (A = πr^2), while compression and cycle describe other concepts not about the boundary length.

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