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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=

Respuesta :

Answer:

46.278cm

Step-by-step explanation:

(π+2)r

=πr+d

=9π+18=46.278cm