well the circumference of a circle is the perimeter so the formula is 2**r or *d so 2*3.14*6= 37.68 inches
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The circumference of a circle if the if the radius is 6 cm is: 37.7 cm
12 inch diameter(also 6 inch radius).
The area of a circle is (pi x radius squared) A = πr2 The circumference is (pi x diameter) C = π (2r) So if you have the circumference, the area is the circumference squared, divided by 4pi (about 12.566). A = C2/4π Example: A circle with a diameter of 6 inches has a radius of 3 inches Area A = pi (32) or about 28.27 square inches Circumference C = pi (6) or about 18.85 inches Using C2/4pi, the area is 18.85 x 18.85 / 12.566 = about 28.27 square inches
The circumference of a 6-inch circle is: 18.85 inches.
Circumference of a circle = 2*pi*radius or pi*diameter