The curved surface of a sphere is 64 π cm². Find its radius?

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What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?

A. 344.35 cm2 B. 344.35 cm2 C. 344.35 cm2 D. None of these...

The edges of a cuboid are respectively 3cm, 4cm and 12 cm. Find the length of the diagonal of cuboid.

A. 5 cm B. 19 cm C. 13 cm D. 144 cm...

The area of a base of a cone is 30 cm². If the height of the cone is 6cm, find its volume?

A. 120 cm3 B. 40 cm3 C. 50 cm3 D. 60 cm3...

A tank 3 m long, 2 m wide and 1.5 m deep is dug in a field 20 m long and 14 m wide. If the earth dug out is evenly spread out over the field, the level of the field will raise by nearly?

A. 0.299 cm B. 0.29 cm C. 2.98 cm D. 4.15 cm...

If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm², then length breadth and height in cms, are respectively?

A. 90, 85, 60 B. 85, 75, 60 C. 90, 75, 70 D. 90, 75,60...