Order the numbers by magnitude (size) and watch the negative signs:
-12, -1, 0, 2, 15, 18
Answer: C
Answer is choice B: the circumference of a circle is the same as perimeter and is defined by πd (or pi times diameter) We can cut this in half because we are working with a semicircle: so we have 6π which approximates to the value in answer
when using 3.14 for pi
Woops: forgot to add the diameter of 12 so we would have 30.84
The denominator.....i dont really understand the question
