notreal8239 notreal8239

17-05-2022
Mathematics

contestada

What is the radius of this circle if the circumference is 18 (pie) cm? c= 18 (pie) cm 3 cm 9 cm 18 cm 36 cm

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beinggreat78 beinggreat78

17-05-2022

Answer:

9, if you round to 2 Decimal Places.

(C = 18π = 18 × π = 56.54 (2 DP))

r = C ÷ 2π

= 56.54 ÷ 2 × π ≈ 9

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