a cylindrical tank is made of cement the thickness of tank is 2 cm height 70 cm and inner radius 100 cm find the volume of cement material used to make the tank
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a cylindrical tank is made of cement the thickness of tank is 2 cm height 70 cm and inner radius 100 cm.
Given,
Height of the cylindrical tank = h = 70 cm
Inner radius of cylindrical tank = r = 100 cm
Outer radius of cylindrical tank = R = 100 + 2 = 102 cm
Volume of the cement material used V = π ( R² - r² ) h
V = 22/7 × (102² - 100²) × 70
= 22/7 × 404 × 70
= 622160 / 7
= 88880 cm³
Therefore, the volume of the cement material used to make the tank is 88880 cm³
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