If a cone has a base with a radius of 5 cm and a height of 10 cm, then its volume (correct to 2 decimal places) is ________ cm3. (Use π = 3.14)

Find the approximate volume and surface area of a sphere of radius 6 cm. (Use π = 227)

Ram has two spherical balls of radius 10.5 cm each and Meena has six spherical balls of radius 7 cm each. What is the total volume of the balls that Meena has?