A toy shown in the figure is made of two solids -a cuboid and a cone. The dimensions of the cuboid are 5 cm x 4 cm x 3 cm and radius and height of the cone are 2 cm and 3 cm respectively. The total surface area of the toy (taking π = 3.14 and 13 = 3.6)
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Cuboid whose length = l, breadth = b and height = h. (a) Volume of cuboid ... (b) Total surface area of cuboid = 2 ( lb + bh + hl ) ... 3. A cone is 8.4 cm high and the radius of its base is 2.1 cm.
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