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2 inches (if pi is approximated to 3.14)

Q: If a circle has a circumference of 6.28 inches then what is the radius?

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200*pi feet, or approximately 628 feet. The formula for the circumference of a circle is C = 2*pi*r.

Area = p* r2 628 ft2 = pi*r2 divide both sides by pi, which is the coefficient of r2 199.8986 = r2 Take square root each side 14.1 feet = radius =============

The height of a cylinder with lateral area of 628 and radius 2.5 is approximately 39.98 units.

39.25 cubic cm (628 DIVIDED BY 8 DIVIDED BY 2

1% of 628 = 1% * 628 = 0.01 * 628 = 6.28

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circumference (C) = 2piR = Two x Pi x Radius Pi = 3.14.... R= C/2pi if C = 628 R = 628/ 2 (3.14...) R= 99.949 cm

200*pi feet, or approximately 628 feet. The formula for the circumference of a circle is C = 2*pi*r.

14.139

Since the circumference of a circle is found by: C = 2 X Pi X r , where Pi can be rounded to 3.14 C = 2 x 3.14 x 100 C = 628 m The circumference can also be found by using the diameter: C = Pi X d, where d = 2r

Area = p* r2 628 ft2 = pi*r2 divide both sides by pi, which is the coefficient of r2 199.8986 = r2 Take square root each side 14.1 feet = radius =============

The height of a cylinder with lateral area of 628 and radius 2.5 is approximately 39.98 units.

2060 feet and 4 inches

39.25 cubic cm (628 DIVIDED BY 8 DIVIDED BY 2

1% of 628 = 1% * 628 = 0.01 * 628 = 6.28

Using pi as 3.14 it works out that the diameter is 20 cm

Most people get hung up on the diameter of the earth. The diameter of the earth is actually of no consequence since the question asks for how much longer the wire is as a result of moving it 100 feet away from the surface of the earth. What's critical here is that the radius has increased 100 feet. So the change in radius is 100ft since it moved 100 feet further away from the center of the earth. Base don the simple formula circumference = 2 * pi * radius, the wire 100 feet above the earth is about 628 feet (628 = 3.14 * 2 * 100) longer than the wire on the surface of the earth.

It is: 628*100 = 62800%