3 years ago

The circumference of a circle is 19.8mm. Find the length of the radius. Give your answer rounded to 1 DP.

1 answer:

3 0

Circumference of a circle = 2pie*r
= 19.8=2*314*r/100
= 1980 = 628*r
r = 1980/628
r = 3.13
~= 3 cm^2
Hope it helped!!!”!!!
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