A cone of radius 12 cm and height 5 cm is mounted on a cylinder of radius 12 cm and height 19 cm Fin...........

Quantitative Aptitude ( CCS) Mensuration 3D

A cone of radius 12 cm and height 5 cm is mounted on a cylinder of radius 12 cm and height 19 cm. Find the total surface area of the figure thus formed.

2498 cm²

2400 cm²

2476 cm²

2376 cm²

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Explanation:

Answer & Explanation
2376 cm²
Explanation:
Slant height of cone, l = √(122 + 52) = 13 cm
Total surface area of final figure = curved surface area of cone + curved surface area of cylinder + area of base
= ?rl + 2?rh + ?r²
= ?r (l + 2h + r)
= (22/7) * 12 (13 + 2*19 +12) = 2376