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Find the volume and curved surface area of whose hight is 25 cm and radius of base is 2.8cm

Asked by vishnu.guduri8 | 06 Apr, 2019, 07:53: PM

Expert Answer

Shape of the solid is not given in the question. Conical shape is assume

volume = (1/3)πr²h = (1/3)π×2.8×2.8×25 = 205 cm³

curved surface are = π×r×l = π×r×

begin mathsize 12px style square root of r squared plus h squared end root end style

= π×2.8×

begin mathsize 12px style square root of 2.8 squared plus 25 squared space end root space almost equal to space 221 space c m squared end style

Answered by Thiyagarajan K | 07 Apr, 2019, 01:11: PM

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