Divide a circle with a circumference of 12.56 cm into two semicircles. The circumference of each semicircle is______ Cm, the area is______ Square centimeter

Divide a circle with a circumference of 12.56 cm into two semicircles. The circumference of each semicircle is______ Cm, the area is______ Square centimeter

Radius: 12.56 △ 3.14 △ 2 = 4 △ 2, = 2 (CM); circumference of semicircle: 12.56 △ 2 + 2 × 2, = 6.28 + 4, = 10.28 (CM); area of semicircle: 3.14 × 22 △ 2 = 3.14 × 4, 2, = 6.28 (CM); answer: circumference of each semicircle is 10.28 cm, area of this circle is 6.28

The circumference of a circle is 56.52, what is the area?

The radius is
56.52÷3.14÷2＝9
What is the area
9×9×3.14＝254.34