Question

From a solid right circular cylinder of height 2.4 cm and radius 0.7 cm, a right circular cone of same height and same radius is cut out. Find the total surface area of remaining solid.

Answer 1

Vol. of cone = 1/3 Vol. of cylinder with same height and radius.

So,

Vol. of remaining shape => vol. of cylinder - 1/3 vol. of cylinder.

Vol. of cylinder = 1.68 cm^3
vol of cone = 1/3 × 1.68 = 0.56cm^3

So, THE VOLUME OF REMAINING FIGURE = 1.68-0.56

= 1.12 cm^3................................Ans

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Answer 2

i think the question is asked to find the TSA of the solid, pls do check and reply if i am wrong.