i don't get how to do circumference
the Circumference of a circle = Pi(diameter)
or
C = 2(pi)r
e.g. a circle of radius 5 cm has a circumference of
10pi or appr. 31.416 cm
Memorize the formula.
pi*diameter = circumference of a circle.
or
C = 2(pi)r
e.g. a circle of radius 5 cm has a circumference of
10pi or appr. 31.416 cm
pi*diameter = circumference of a circle.