Solution - Surface Area of a Combination of Solids

Account
Register

Share

Books Shortlist
ConceptSurface Area of a Combination of Solids

Question

504 cones, each of diameter 3.5 cm and height 3 cm, are melted and recast into a metallic sphere. Find the diameter of the sphere and hence find its surface area.
[Use π=22/7]

Solution

You need to to view the solution
Is there an error in this question or solution?

Similar questions VIEW ALL

From a solid cylinder of height 2.8 cm and diameter 4.2 cm, a conical cavity of the same height and same diameter is hollowed out. Find the total surface area of the remaining solid [take π=22/7]

view solution

The volume of a cube is 1000 cm3. Find the side of a cube.

view solution

Water flows at the rate of 15 m per minute through a cylindrical pipe, having the diameter 20 mm. How much time will it take to fill a conical vessel of base diameter 40 cm and depth 45 cm?

view solution

A toy is in the form of a cone of base radius 3.5 cm mounted on a hemisphere of base diameter 7 cm. If the total height of the toy is 15.5 cm, find the total surface area of the top (Use π = 22/7)

view solution

In Fig. 5, is a decorative block, made up two solids – a cube and a hemisphere. The base of the block is a cube of side 6 cm and the hemisphere fixed on the top has diameter of 3.5 cm. Find the total surface area of the bock (Use pi=22/7)

view solution

Reference Material

Solution for concept: Surface Area of a Combination of Solids. For the course 8th-10th CBSE
S