The circular face of a watch has an are that measures between 800 and 900 square millimeters. What can be the radius of the watch face? Use 3.14 for pi. 14mm
15mm
16mm
17mm
Realistically the answer is 15.9-16.9 mm, but I would go with 16 because that answer is in BETWEEN. All you have to do is plugin for the area of a circle equation which is (pi)(radius)^2=(AreaOfCircle) to reach the answer you solve normally.
