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Please answer with clear instructions so that i can apply this to other questions

Please Answer With Clear Instructions So That I Can Apply This To Other Questions class=

Sagot :

Answer:

30 cm

Step-by-step explanation:

The perimeter of a circle is 2[tex]\pi[/tex]r where r is the radius. Therefore, the perimeter of the semicircle would be [tex]\pi[/tex]r + the diameter (because there is only half of the circle's arc). Using the value [tex]\pi[/tex] = 3 and d (diameter) = 12, the area of the circle would be 3(6) + 12 which is 18 + 12 which is 30 cm.

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