Find the diameter of a circle with radius r= 42 in. The diameter is (Simplify your answe in. in.2 in, 3
Find the diameter of a circle with radius r= 42 in. The diameter is (Simplify your answe in. in.2 in, 3
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
![**Problem Statement:**
Find the diameter of a circle with radius \( r = 42 \, \text{in.} \)
**Solution:**
The formula for the diameter \( D \) of a circle is:
\[ D = 2r \]
Given that the radius \( r \) is 42 inches, the diameter is:
\[ D = 2 \times 42 = 84 \]
**Answer:**
The diameter is \(\boxed{84}\) in.
**Unit Selection:**
There is a dropdown menu to select the units for the answer:
- in.
- \( \text{in.}^2 \)
- \( \text{in.}^3 \)
**Note:**
- The correct unit for the diameter is in. (inches).
- The options \( \text{in.}^2 \) and \( \text{in.}^3 \) are incorrect for diameter, which is a linear measurement.
**Additional Information:**
(Simplify your answer) - Make sure your answer is in the simplest form.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdde5ed36-ed30-4592-999a-f760ff87de21%2Faf4e5d0a-0e9c-4d48-872d-34c05c17c6d0%2Fjpngk5i_processed.png&w=3840&q=75)
Transcribed Image Text:**Problem Statement:**
Find the diameter of a circle with radius \( r = 42 \, \text{in.} \)
**Solution:**
The formula for the diameter \( D \) of a circle is:
\[ D = 2r \]
Given that the radius \( r \) is 42 inches, the diameter is:
\[ D = 2 \times 42 = 84 \]
**Answer:**
The diameter is \(\boxed{84}\) in.
**Unit Selection:**
There is a dropdown menu to select the units for the answer:
- in.
- \( \text{in.}^2 \)
- \( \text{in.}^3 \)
**Note:**
- The correct unit for the diameter is in. (inches).
- The options \( \text{in.}^2 \) and \( \text{in.}^3 \) are incorrect for diameter, which is a linear measurement.
**Additional Information:**
(Simplify your answer) - Make sure your answer is in the simplest form.
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