What are the two square roots of 16?

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Pick the description of a geometric object that best matches the real world object box for a deck of card