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Q: What is the circumference if the radius is 8cm and the diameter is 16cm?

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It depends on the ratio of what of the circle? Its circumference, diameter, area?

15

The radius is 1.27cm

C = ~25.133 cm

Its radius would be 4cm long. You split it in half.

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Circumference of a circle: 2*p*radius or pi*diameter

It depends on the ratio of what of the circle? Its circumference, diameter, area?

The diameter of a circle may found by dividing the circumference by pi. 8cm/3.1416=2.546cm

15

The diameter of a circle is the length of a straight line from a point on the edge of the circle passing through the center of the circle and onto a point on the opposite edge of the circle. The radius of a circle is the length of a straight line from the center of a circle to a point on the edge of the edge of the circle. So the radius of a circle is half its diameter, in this case 8cm.

radius=4cm diameter=8cm *radius is half the diameter

Circumference of a circle = 3.14 x d 3.14 x 8 = 25.12 Therefore the circumference of a circle with the diameter of 8cm is 25.12cm.

The radius is 1.27cm

the answer is 20.54

Just the one and it is 8cm by 14cm by 16cm

C=3.14*d<----diameter d=r*2 ex: what is the circumference of a circle if the radius is 4cm? 4*2=8cm 3.14*8=25.12cm c=25.12cm

C = ~25.133 cm

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