Q. 24.1( 36 Votes )

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Answer :

The figure is shown below:



Given that, radius(r) is 8 cm, height of cylinder(H) is 10 cm and height of cone(h) is 6cm.


Also, l = √ r2 + h2


l = √ 82 + 62


l = √ 64 + 36


l = √ 100


l = 10


Now, total surface area of solid = surface area of cone + surface area of cylinder + surface area of sphere


total surface area of solid = πrl + 2πrH + 2πr2 = πr(l + 2H + 2r)


= 3.14 × 8(10 + 2 × 10 + 2 × 8)


= 3.14 × 8 × 46


= 1155.55 cm2


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