work out the circumference of this circle take pie to be 3.142and give your number to 1 decimal place and the radius is 11.2cm

2 answers:

6 0

Circumference is 2*pi*r
2 * 3.142 * 11.2 = 70.3808, to 1 decimal place is 70.4cm^2

ddd [48]3 years ago

6 0

Pi*r*2 = 2*pi*11.2
=70.3716...
70.3716... > 1 d.p.
=70.4cm

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