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. A cylindrical tank 7 m in diameter, contains water toa depth of 4 m. Find the total area of the wet surface.(π = 3.14) |
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Answer» Wet surface = curved surface upto water level + bottom circleradius of the cylinder r = 7/2height of the cylinder h = 4Area of wetted surface = Curved surface area of the cylinder + Area of base circle = 2πrh + πr2⇒ πr(2h + r) ⇒22 x 7(8 + 3.5)7 x 2⇒ 11 x 11.5 = 126.5 m2 |
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