A closed cylindrical drum of diameter 1.4 m and height 1.5 m is made of metal sheet. Find the cost of the sheet at ₹200 per m² (answer in ₹). (Take \pi=\frac{22}{7})

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NumericalTotal Surface Area of Cylinder

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30 circular plates, each of radius 14 cm and thickness 3cm are placed one above the another to form a cylindrical solid. Find :

CASE_STUDIESTotal Surface Area of CylinderVolume of a Cylinder

A solid wooden capsule is shown in Figure 1. The capsule is formed of a cylindrical block and two hemispheres. Find the sum of total surface area of the three parts as shown in Figure 2. Given, the radius of the capsule is 3.5 cm and the length of the cylindrical block is 14 cm. (Use π = 22/7)

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