Use a protractor and get it to 2 centimeters and draw that circle.YOUR DONE ENJOY
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4cm
Area = Pi(r)2 - A circle with a radius of 12 centimeters has an area of 452.39 square centimeters.
3/(2*pi)
When you draw a circle in math, and you draw a triangle inside of it, 2 of the lines should be the radius of the circle, and the third (bottom) line that is not the radius is the chord.
It is: 2*4 = 8 cm