Question
A semicircular sheet of metal of diameter 14cm is bent
into an open conical cup. the capacity of the cup is. Use π = 22/7Solution
Diameter = 14 R = 14/2= 7 m Capacity of cup = πr3 /8 √3 =22/7 ×7×7×7)/ 8 ×1.73 =1078/13.8 = 78.11cm3
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