MEDIUM
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A solid is in the form of a right circular cylinder with a hemisphere at one end and a cone at the other end. The radius of the common base is 8 cm, and the heights of the cylindrical and conical portions are 10 cm and 6 cm respectively. Find the total surface area of the solid. [use π=3.14]
 

Important Questions on Surface Areas and Volumes

EASY
What is the volume (in cm3) of a sphere of diameter 18 cm (correct upto two decimal places)?
EASY

If the volume of a sphere is 4851 cm3, then its surface area (in cm2) is: (Take π=227)

EASY
The volume of two spheres are in the ratio 64:125. The the ratio of their surface areas is ____.
EASY

The surface area of a sphere of radius 7 cm is

(Take π=227)

MEDIUM
The radius of a sphere is reduced by 40%. By what percent will its volume decrease?
MEDIUM
If the ratio of the volume of two spheres is 64:27, then find the ratio of their surface area.
EASY
The radius of a sphere is equal to the radius of the base as well as the height of a right circular cylinder. What is the ratio of the surface area of sphere and curved surface area of the cylinder?
EASY

The radius of a semi-sphere is 7 cm, find the total surface area of it.

EASY

The curved surface area of a hemisphere with radius 7 cm is: 

(Takeπ=227)

EASY
The volumes of spheres A and B are in the ratio 125:64. If the sum of radii of A and B is 36 cm, then the surface area in cm2 of A is?
EASY
The total surface area of a hemisphere is 1039.5 cm2. Find its diameter (in cm.).
EASY
If the radius of a solid sphere is 10.5 cm, then what is the area of its whole surface in cm2? [Take π=227]
EASY

Find the total surface area of a hemisphere of diameter 10 cm.

EASY
If a sphere has a radius of  4.5 cm what would its total surface area come to?
MEDIUM
A cubical block of side 7 cm is surmounted by a hemisphere.What is the greatest diameter the hemisphere can have.Find the surface area of solid.
EASY
Total surface area of a solid hemisphere of radius 7 cm is _____ cm2
EASY
A metallic sphere of diameter 40 cm is melted into spheres of radius 0.5 cm. How many such small balls can be made?
MEDIUM
A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?
HARD
A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, as shown in figure. If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm. Find the total surface area of the article.
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