Question

Select the best estimate for the diameter of a quarter.

A. 0.20 mm
B. 20 mm
C. 200 mm
D. 20 cm

Answer 1

It’s B. The diameter of a quarter is 19.05 mm which you can round to 20 mm

Answer 2

B (20 mm)

Explanation:

The diameter is actually 19.05, so 20 is very close.