Answered

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work out the perimeter of this semicircle, take pie to be 3.142
radius= 10cm

Sagot :

altavistard

Answer:

30 cm

Step-by-step explanation:

Perimeter = (half the circumference) + (twice the radius)

                 = (1/2)(2·10 cm)                   +  2(10 cm)

                 = 10 cm + 20 cm

                  = 30 cm

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