What is the circumference of a circle with a diameter of 10 inches?
Understand the Problem
The question asks for the calculation of the circumference of a circle, given its diameter. It requires the application of the formula C = π × d, where C is the circumference, and d is the diameter. Here, the diameter is provided as 10 inches and the user is instructed to use 3.14 as an estimate for π.
Answer
The circumference is $31.4$ inches.
Answer for screen readers
The circumference of a circle with a diameter of 10 inches is $31.4$ inches.
Steps to Solve
- Identify the formula for circumference
The formula for calculating circumference ($C$) is given by:
$$ C = \pi \times d $$
where $d$ is the diameter of the circle.
- Substitute the values into the formula
Here, the diameter ($d$) is 10 inches. Substitute this value into the formula:
$$ C = 3.14 \times 10 $$
- Perform the multiplication
Now calculate the circumference by multiplying:
$$ C = 31.4 $$
So, the circumference of the circle is 31.4 inches.
The circumference of a circle with a diameter of 10 inches is $31.4$ inches.
More Information
The circumference is the distance around the circle. Using a value of $3.14$ for $\pi$ is a common approximation for calculations.
Tips
- Incorrectly substituting or forgetting to use the value of $\pi$.
- Failing to perform the multiplication step.
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