the circumference of a circle is 6​ kilometers. What is the radius? diameter of a circle is 20 miles. What is the circumference?

circumference if circle =6km

2πr=6

R=3/π km

Step-by-step explanation:

When diameter of circle =`20miles

Circumference of circle =πd=20πmiles.

C 10% Condition.

Step-by-step explanation:

Let's Look at them one by one.

A: Large Enough sample condition.

this is met because 600 students is a good number to carry out a surwey.

B: Randomization,  600 incoming freshman are definitely random.

C: we are left with C so the answer is C.