Seven 1-centimeter buttons are stitched on a shirt. What area do all seven buttons cover? Round to the nearest hundredth. (Use 3.14 for π.)

The problem did not state if the 1cm measure is the radius or diameter.

Area of a circle = π r²

Assuming: 1 cm is the radius

Area of 1 button = 3.14 * (1cm) ² = 3.14cm²

Total area = 3.14cm² * 7 buttons = 21.98 cm²

Assuming: 1cm is the diameter : radius is 1/2 = 0.50cm

Area of 1 button = 3.14 * (1/2cm) ² = 3.14 * 0.25cm² = 0.785cm²

Total area = 0.785cm² * 7 buttons = 5.495cm²