Circumference of a circle = 2*pi*radius
no
You cannot. A circle is a 2-dimensional object which has an area but no thickness and, therefore, no volume. A litre is a measure of volume. You cannot measure an object with no volume using units that are intended for volume.
First draw a circle using a compass. Now, use a piece of string to help measure the circumference of the circle. Now measure the diameter of the circle. To discover Pi divide the circumference by the diameter.
The teacher explained how to measure the area of a circle using radius.
Multiply the diameter times pi.
Using a meter stick, measure out a meter. Then turn pi/2 radians according to the unit circle and measure out another meter.
If you mean a circle with a diameter of 28 cm, the circumference is 87.96459430051421067695392... using pi to 23 decimal places.* * * * *The answer above implies that the diameter of the circle was measure to an accuracy of 23 decimal places. Very unlikely, I suggest!
If a circle is comprised of 360 degrees, then each of the five sections will encompass 72 degrees. From an arbitrary radius, using a protractor, measure 72 degrees, then continue around the circle.
A diameter is measured by using a ruler. However, you also could use a digital caliper to measure the diameter of a circle.
Measure using a protractor and then split it every 40degrees. DoNe
The radius is: 21.98/2*3.14 = 3.5 inches