Math Problem Statement
Find the circumference of a circle with a radius of 7 inches using 3.14 for the value of π.
Solution
The problem in your image is asking to find the circumference of a circle with a radius of 7 inches. The formula for the circumference of a circle is given by:
Where:
- is the radius of the circle,
- is approximated as 3.14 (as per the problem instructions).
Now, substituting the given radius inches:
The correct answer is , which matches the first option in your choices.
Would you like further details or explanations? Here are some related questions to expand on this:
- What is the relationship between the diameter and circumference of a circle?
- How would the circumference change if the radius were doubled?
- Can you use the circumference formula to find the radius if the circumference is known?
- How does the value of affect the accuracy of the circumference calculation?
- What are some real-world applications of calculating the circumference of a circle?
Tip: Always double-check units to ensure the correct final answer!
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Math Problem Analysis
Mathematical Concepts
Geometry
Circle
Circumference
Formulas
Circumference formula: C = 2πr
Theorems
Relationship between circumference and radius in circles
Suitable Grade Level
Grades 6-8