Adaptive Practice
Volume and Surface Area
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Easy
A cricket ball is a perfect sphere with a radius of 3.5 cm. What is the volume of the cricket ball? (Use \( \pi = \frac{22}{7} \))
Easy
A cuboidal gift box has dimensions 20 cm × 15 cm × 10 cm. What is its surface area?
Medium
A cylindrical water tank has a radius of 7 m and height of 10 m. Find the volume of water it can hold. (Use \( \pi = 3.14 \))
Easy
The surface area of a cube is 600 cm². What is the length of one side?
Easy
A cone has a radius of 3 cm and height of 4 cm. Find its slant height.
Medium
A cylinder and a cone have the same base radius 5 cm and height 12 cm. What is the ratio of their volumes?
Medium
A rectangular swimming pool is 25 m long, 10 m wide, and 2 m deep. It is filled with water. How many liters of water does it hold? (1 m³ = 1000 liters)
Hard
A solid metal sphere of radius 6 cm is melted and recast into smaller spheres each of radius 2 cm. How many smaller spheres are made?