By marking out 10 arcs of 36 degrees around its circumference and joining them to the centre of the circle.
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Mark out 10 by 36 degree arcs around its circumference and then join them up to the center of the circle.
A diameter is a line connecting any two points in a circle that passes through the centre of a circle. You can draw 1 diameter and divide the circle in half. You can draw 2 and divide it into 4 pieces or draw an infinite amount and divide it into infinite pieces.
From the center of the circle, draw like a cross from there.
If the circumference of a circle is 10 feet the radius is: about 1.592 feet. For this type of calculation, divide the circumference by Pi (about 3.1416). This gives you the diameter. Next, divide the diameter by two to get the radius.
Think about a circle. If you divide it into six equal parts, each part is 1/6 of the circle. Now think about a circle that is identical to the first. If you divide that one into eight equal parts, each part is 1/8 of the circle. If you compare the two divided circles, you will see that the 1/8 pieces must be smaller than the 1/6 pieces, because eight pieces are filling the same space as six pieces. Draw this out on paper to prove this to yourself if need be.