Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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![**Question:**
Find the circumference of a circle with a radius of 30 mm.
**Options:**
- A. about 47.12 mm
- B. about 282.74 mm
- C. about 188.4 mm
- D. about 109.67 mm
**Explanation:**
To find the circumference of a circle, you can use the formula:
\[ C = 2 \pi r \]
where \( C \) is the circumference and \( r \) is the radius. Given the radius \( r = 30 \) mm, we can substitute this value into the formula.
\[ C = 2 \pi \times 30 \]
\[ C \approx 2 \times 3.14159 \times 30 \]
\[ C \approx 188.4 \text{ mm} \]
Therefore, the correct answer is:
- C. about 188.4 mm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F384bb2d8-4bfb-40a4-b5b5-cce563951ac9%2F3f4bb030-1bb8-4f40-ab90-9976f3fdb7aa%2Fi0smnl1_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question:**
Find the circumference of a circle with a radius of 30 mm.
**Options:**
- A. about 47.12 mm
- B. about 282.74 mm
- C. about 188.4 mm
- D. about 109.67 mm
**Explanation:**
To find the circumference of a circle, you can use the formula:
\[ C = 2 \pi r \]
where \( C \) is the circumference and \( r \) is the radius. Given the radius \( r = 30 \) mm, we can substitute this value into the formula.
\[ C = 2 \pi \times 30 \]
\[ C \approx 2 \times 3.14159 \times 30 \]
\[ C \approx 188.4 \text{ mm} \]
Therefore, the correct answer is:
- C. about 188.4 mm
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