EASY
Earn 100

The inner diameter and outer diameter of a hollow sphere is 7 cm and 8 cm respectively, melted and recoated into a cone whose diameter is 26 cm. What will be the height of cone ?

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Important Questions on Geometry

EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
Which of the following solids has least number of faces?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
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
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
A metallic sphere of diameter 40 cm is melted into spheres of radius 0.5 cm. How many such small balls can be made?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The volume of two spheres are in the ratio 64:125. The the ratio of their surface areas is ____.
MEDIUM
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
A sector of radius 10.5 cm with the central angle 120o, is folded to form a cone by joining the two bounding radii of the sector. What is the volume (in cm3) of the cone so formed?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry

The edge of a cube is 8 cm .What is the total surface area of the cube?

EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
Find the height of a cube whose volume is 330 cm3 and base area is 15 cm2.
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The curved surface area of a cylinder is 25344 cm2 and its height is 32 cm. What is the volume of a cylinder whose capacity is π792 times the volume of the given cylinder?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry

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

(Takeπ=227)

HARD
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The circumference of the base of a conical tent is 66 m. If the height of the tent is 36 m, what is the area (in m2) of the canvas used in making the tent? (Take π=227)
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The total surface area of a solid cylinder is 1155 cm2.Its curved surface area is two-fifth of its total surface area.What is the height (in cm) of the cylinder?
MEDIUM
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
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?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
What is the volume (in cm3) of a sphere of diameter 18 cm (correct upto two decimal places)?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
When the radius of a sphere is increased by 5 cm, its surface area increases by 704 cm2 . The diameter of the original sphere is ______. (Take π=227)
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The radius of a right circular cylinder is 7 cm. Its height is twice its radius.What is the curved surface area of the cylinder?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The total surface area of a cube is 864 cm2. What is its volume (in cm3)?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
If the radius of a right circular cone is decreased by 10% and its height is increased by 40%, then by what percent does its volume increase or decrease?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
If the radius of the right circular cylinder is decreased by 10%, and the height is increased by 20%, then the percentage increase/decrease in its volume is:
MEDIUM
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The radius of a sphere is reduced by 40%. By what percent will its volume decrease?
EASY
Quantitative Aptitude>Geometry>Geometry>Solid Figures in Geometry
The total surface area of a hemisphere is 1039.5 cm2. Find its diameter (in cm.).