What is the circumference of a circle with a diameter of 8 kilometers? Estimate the circumference to the hundredths place using 3.14 for pi.

Answer 1

The radius of the circle can be found by dividing the diameter by 2:
radius = diameter/2 = 8 km/2 = 4 km.

The formula to calculate the circumference of a circle is C = 2πr, where C is the circumference and r is the radius.

Plugging in the values:
C = 2 * 3.14 * 4 km ≈ 25.12 km.

Therefore, the circumference of the circle with a diameter of 8 kilometers is estimated to be 25.12 kilometers.