The circled question...........................
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Given radius of hemispherical ends = 7cm
Height of body (h+2r)= 104cm
Curved surface area of cylinder = 2πrh
Substitute ‘h’ value in (1)
Curved surface area of cylinder = 2π(7)(90)
=3948.40cm2 ................(2)
Curved surface area of 2 hemisphere = 2(2πr2)
Total curved surface area = (2) + (3)
Step-by-step explanation:
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