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11-04-2021
Mathematics

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Work out the perimeter of this semicircle.
Take it to be 3.142 and write down all of the digits given by your calculator.
18 cm give your answer in cm

Work out the perimeter of this semicircleTake it to be 3142 and write down all of the digits given by your calculator18 cm give your answer in cm class=

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11-04-2021

Answer:

46.278cm

Step-by-step explanation:

(π+2)r

=πr+d

=9π+18=46.278cm

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