Question

Matthew finds the diameter of a half dollar to be 30.61 mm in length. If Matthew wants to find the area of the half-dollar, what are the appropriate units for his answer?

A. Mm
B. Cm
C. Cubic mm
D.square mm

Answer 1

If you have a diamter measured in
`x` then an area will be measured in
`x^2` assuming you haven't done any convertions. So the correct answer is square mm in your case. (Answer D)

Answer 2

im not 100% sure but the answer might be option D because if your trying to the area of something it usually ends with squared.