The park james's house used to have a bike trail that was 12.347 kilometers long. last year, the trail was reduced to 9.432 kilometers to make space for meditation garden. what is the difference in the lengths of the old and new bike trails?
a.) 2.547 kilometers
b.) 2.746 kilometers
c.) 2.874 kilometers
d.) 2.915 kilometers

The correct option is (D). 2.915 kilometers.

Step-by-step explanation:  Given that the Park Jame's house used to have a bike trail that was 12.347 kilometers long. The trail was reduced to 9.432 kilometers last year to make space for meditation garden.

We are to find the difference in the lengths of the old and new bike trails.

The difference in the lengths of the old and new bike trails is given by

Thus, (D) is the correct option.

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice