Question

find the circumference of a circle whose diameter is 9.1
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Answer 1

circumference = 2 pie r

circumference = 2× 22/7 × 9.1/2

circumference = 28.6

Answer 2

Answer:

circumference= 28.6cm

Step-by-step explanation:

diameter= 9.1cm

circumference= πd

= 22×9.1/7

= 22×91/7×10

= 22×13/10

= 286/10

= 28.6cm

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