[font=Tahoma][size=3]( i ) the circumference of a circle ( c = 2 x 3.14 x r) is related to the radius of the circle in a direct way. Draw the circles as indicated int he table below, then measure the circumference?

( ii ) calculate the ratio circumference divided by radius is related to the formula

Circle Radius r (mm) Circumference C (mm) Circumference ÷ radius

A 6

B 10

C 15

D 19

E 29

( iii) explain how these results help to determine the formula for the circumference. That is, explain how the ratio circumference ÷ radius is related to the formula ?

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