Question

How many inches long is the radius of the largest circle that can fit inside a rectangle 18 inches long and 12 inches wide

Answer 1

The largest circle is inside a square of side 12.

The radius is 6√2 inches (half of the diagonal)

Answer 2

6 inches

Explanation:

The diameter of the largest circle inside a rectangle of size 18" x 12" has to be 12", the smaller of the two lengths

If the diameter is 12", the radius is half of that = 12"/2 = 6"