. The perimeter of a
semicircular disc of diameter
30.8 m is:
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Answer:
Perimeter=πd
=π*30.8
=22/7*30.8
=22*4.4
=96.8
=96.8/2
=48.4
perimeter of a semicircular disc=48.4+d
=48.4+30.4
78.8 cm
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