find the perimeter of a semicircular disc of diameter 30.8cm .(use π 22/7)
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Answered by
0
Answer:
C=πd=π·30.8≈96.76105cm
Answered by
12
Step-by-step explanation:
r=30.8/2
=15.4 cm
perimeter =r(π+2)
=15.4(22/7+2)
=15.4(22+14/7)
=15.4×36/7
= 396/7
=79.2cm
hope it help ☺☺
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