The circular face of a watch has an area that measures between 800 and 900 square millimeters. What could be the radius of the watch face? Use 3 point 1 4 for pi

Use the area formula for a circle, A = πr². For a radius of 16 mm, the area is 3.14 × 16² = 803.84 square millimeters, which is between 800 and 900. The other listed radii give areas outside that range, so 16 mm is the possible radius.

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