It is: circumference/radius = 2*pi
3.14 or pi
A wheel is in the shape of a circle. The formula for the circumference of a circle is 2πr where r is the radius. But, the diameter of a circle is twice the radius so this equation can be written, Circumference = πd where d is the diameter. The Circumference is therefore π times as big as the diameter, π = 3.142 or 22/7 approx.
Given a diameter d, the circumference of a circle is Pi*d. Thus the circumference is Pi times larger than the diameter.
Circumference = 2*pi*radius or pi*diameter Circumference = 36pi inches
8 times
It is: circumference/radius = 2*pi
The Earth's circumference is about 10 times larger than the Moon's circumference.
100,000 times
Earth's radius is about 6,371 km, so Earth's radius is approximately 1.88 times larger than Mars.
2 pi times greater-- roughly 6.28 times greater.
The sun has a radius of approximately 696,340 kilometers, while a star with 0.1 solar radius would have a radius of 69,634 kilometers. To calculate how many times larger the sun is, we divide the sun's radius by the smaller star's radius: 696,340 km / 69,634 km = 10. Therefore, the sun is 10 times larger than a star with 0.1 solar radius.
3.14 or pi
A wheel is in the shape of a circle. The formula for the circumference of a circle is 2πr where r is the radius. But, the diameter of a circle is twice the radius so this equation can be written, Circumference = πd where d is the diameter. The Circumference is therefore π times as big as the diameter, π = 3.142 or 22/7 approx.
The radius of the Sun is about 109 times larger than the radius of the Earth.
Given a diameter d, the circumference of a circle is Pi*d. Thus the circumference is Pi times larger than the diameter.
Two times larger.