find the circumference of the figure, Give both the exact value and an approximation to the nearest hundredth. Circle 6.6km
I am just learning this and a teacher is using inches but the textbook has metrics and I never learned the metric system Please Help!
One kilometer, km, is 1000 meters
One meter is 39.37 inches
To find the circumference of a circle, you can use the formula:
C = 2πr
Where:
C is the circumference
π (pi) is a mathematical constant approximately equal to 3.14159
r is the radius of the circle
In your case, the given radius is 6.6 km. To find the circumference, substitute the value of the radius into the formula:
C = 2π(6.6)
Using a calculator, you can determine the exact and approximate values of the circumference.
Exact Value:
C = 2π(6.6)
C = 13.2π
C ≈ 13.2 × 3.14159
Approximate Value:
C ≈ 13.2 × 3.14159 ≈ 41.452
Therefore, the exact value of the circumference of the circle is 13.2π km, and the approximate value to the nearest hundredth is 41.45 km.