please solve this question and send explanation clearly
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1
Answer:
the belt cover semi circle
length of belt= 3•2πr/2+(6r)
= 3πr+6r
= (3×22/7×7/2)+6×7/2
= (3×11)+21
= 33+21
= 54
I don't know why 54 is not in option
#666
Answered by
1
Answer:
Step-by-step explanation:
the belt cover semi circle
length of belt= 3•2πr/2+(6r)
= 3πr+6r
= (3×22/7×7/2)+6×7/2
= (3×11)+21
= 33+21
= 54
I don't know why 54 is not in option
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