Class IX

The surface are of a cuboid of 16 m long, 14 m broad and 7 m high is
  1. 860 cm²
  2. 868 cm²
  3. 910 cm²
  4. 910 cm²
A cone, a hemisphere and a cylinder stand on equal bases and have the same height. The ratio of their volume is
  1. 0.043090278
  2. 0.04380787
  3. 0.086168981
  4. 0.043101852
The height of a right circular cylinder is 14 cm and its curved surface area is 704 sq. cm. Then its volume is
  1. 1408 cm³
  2. 2816 cm³
  3. 5632 cm³
  4. 9856 cm³
The slant height of the a right circular cone of the height 15 cm and base diameter 16 cm is
  1. 11 cm
  2. 13 cm
  3. 15 cm
  4. 17 cm
The curved surface are of the cube is 1734 cm2 , then the length of the side of the cube is
  1. 17 cm
  2. 13 cm
  3. 15 cm
  4. 19 cm
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