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Math  /  Geometry

QuestionThe diameter of a circle is 7 miles. Find the circumference of the circle. Round your answer to 2 decimal places. \qquad miles

Studdy Solution

STEP 1

1. The circle has a diameter of 7 7 miles.
2. The formula for the circumference of a circle is known.
3. π\pi is approximately 3.14159 3.14159 .

STEP 2

1. Recall the formula for the circumference of a circle.
2. Substitute the given diameter into the formula.
3. Calculate the circumference.
4. Round the result to 2 decimal places.

STEP 3

Recall the formula for the circumference of a circle:
C=π×d C = \pi \times d
where C C is the circumference and d d is the diameter.

STEP 4

Substitute the given diameter into the formula:
C=π×7 C = \pi \times 7

STEP 5

Calculate the circumference using π≈3.14159\pi \approx 3.14159:
C=3.14159×7 C = 3.14159 \times 7 C≈21.99113 C \approx 21.99113

STEP 6

Round the result to 2 decimal places:
C≈21.99 C \approx 21.99
The circumference of the circle is:
21.99 miles \boxed{21.99} \text{ miles}

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