Make at least one mistake in your calculation.
Circumference of a circle = 2*pi*radius or diameter*pi Its diameter = circumference/pi
To estimate the circumference, multiply the diameter by 3. If you have a calculator or are decent at multiplication and have the time, multiply it by 3.14. If you can, multiply it by pi.
pie x D = Pie x 9 = 28.3 ( to 1 dp) The circumfrence is roughly 3 times the diameter
1. The diameter multiplied by pie. 2. The radius multiplied by 2 multiplied by pie. 3. The area divided by pie, the square root of that answer then multiplied by 2 then multiplied by pie.
The circumference of a circle is given by π × diameter. π =3.14159265...... It is approximately 3.14 which, itself, is approximately 22/7. To estimate the circumference of a circle, multiply the diameter by 3 and add the diameter divided by 10 and that division divided by 2; this will give you 3.15 × diameter which is fairly close. Alternatively, multiply the diameter by 22 and divide by 7.
The circumference of a circle with a diameter of 3 meters is: 9.42 meters (diameter x Pi = circumference).
Just look at it clearly keep a ruler and works doneTo estimate multiply diameter by 3 and add 15% ormultiply the diameter by 22 and divide that by 7.Just multiply the diameter by 3 for a good estimation.
The circumference of a circle with a diameter of 3 inches is 9.425 inches.
The circumference of a circle when the diameter is 30 is: 94.25
No. The diameter is twice the radius. The circumference is equal to the diameter multiplied by pi (3.142). So the diameter is just under 1/3 of the circumference.
The circumference of a cirlce that has a diameter of 3 inches would be about 9.42 inches
The diameter of a circle with a 3-meter circumference is: 0.9549 meters.