I guess you could say radius (r) and the symbol pi, and the number 2:
No. The formula for circumference of a circle is pi x diameter. As pi is 3.14... then the circumference will be at least 3.14 times the diameter.
That's the formula for the circumference of a circle, when you know the radius. What you do is multiply all three together. Pi is approximately 3.14, and r stands for the radius. The result of the multiplication is the circumference.
Circumference of circle: 124*pi = 389.557 feet to three decimal places
A circle with a diameter of three feet has a circumference of 9.4 feet.
Circumference of the circle: pi*1.675 = 5.262 inches to three decimal places
No. The formula for circumference of a circle is pi x diameter. As pi is 3.14... then the circumference will be at least 3.14 times the diameter.
That's the formula for the circumference of a circle, when you know the radius. What you do is multiply all three together. Pi is approximately 3.14, and r stands for the radius. The result of the multiplication is the circumference.
Remember that the formula for the circumference of a circle is 2πr, with r being the radius. So 2πr is 33. we can divide this number by pi to get the diameter. According to a calculator, 33 / π = 10.50423. Now the formula for the area of a circle is πr2. So we need to divide 10.50423 by 2. The result is 5.25211. This is r. π(5.25211)2 = 86.65987. So the area of a circle with a circumference of thirty three units is 86.65987 units.
Circumference of circle: 124*pi = 389.557 feet to three decimal places
circumference of a circle = diameter*pi or 2*pi*radius
A circle with a diameter of three feet has a circumference of 9.4 feet.
The circumference of a circle is calculated using the formula C = πd, where C is the circumference, π is approximately 3.14159, and d is the diameter of the circle. In this case, the diameter is 1.75 inches, so the circumference would be C = π(1.75) = 5.498 inches (rounded to three decimal places).
Circumference of the circle: pi*1.675 = 5.262 inches to three decimal places
Circumference of circle: 2*pi*6 = 37.699 units to three decimal places
Circumference of the circle: 2*pi*6 = 37.699 cm to three decimal places
Construct a circle with a 4.5 radius. The circle's circumference is 360 degrees. So mark out 3 by 120 degrees on the circumference and join them to the centre of the circle which will divide the circle into three equal parts.
Its circumference Its diameter Its radius