Correct option is D
Given:
Radius (r) = 5.4 cm
Formula Used:
Surface Area of Sphere = 4 × π × r2
Solution:
Surface Area = 4 × π × (5.4)2
Surface Area = 4 × π × 29.16
Surface Area = 116.64 π sq. cm.
Question
What will be the surface area of the sphere having 5.4 cm radius?
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- 1)
A sphere of radius 14 cm is cut along three diametrical planes to form 6 equal parts. What would be the total surface area (in cm2) of all the new pieces so obtained? (Take π = 22/7)
- 2)
A small sphere has a radius of 5 cm. A larger sphere is created by uniformly expanding the smaller sphere. The radius of the larger sphere is 15 cm. How many times greater is the surface area of the larger sphere compared to the smaller sphere?
- 3)
The ratio of the radius of Hemisphere A to Hemisphere B is 2:1.
If the curved surface area of Hemisphere A is equal to the volume of Hemisphere B, find the radius of Hemisphere B. - 4)
A solid sphere is placed inside a cube such that it touches all six faces. What percentage of the cube's volume is not occupied by the sphere?
- 5)
If the radius of a sphere is increased to twice its original size, what is the ratio of the new surface area to the original surface area, as well as the proportion of the new volume to the original volume?
- 6)
A metal sphere having a radius of 10 centimeters is melted down and molded into 8 identical smaller solid spheres. What is the ratio of the surface area of the original sphere to the total surface area of all 8 smaller spheres?
- 7)
What will be the surface area of the sphere having 5.4 cm radius?
- 8)
Find the volume of the sphere whose diameter is 30 cm. (Use π = 3.14).
- 9)
Find the surface area of a sphere whose diameter is equal to 14 cm.
- 10)
The curved surface area of a sphere is 9856 cm2, find its diameter in m.
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Similar Questions
- 1)
A sphere of radius 14 cm is cut along three diametrical planes to form 6 equal parts. What would be the total surface area (in cm2) of all the new pieces so obtained? (Take π = 22/7)
- 2)
A small sphere has a radius of 5 cm. A larger sphere is created by uniformly expanding the smaller sphere. The radius of the larger sphere is 15 cm. How many times greater is the surface area of the larger sphere compared to the smaller sphere?
- 3)
The ratio of the radius of Hemisphere A to Hemisphere B is 2:1.
If the curved surface area of Hemisphere A is equal to the volume of Hemisphere B, find the radius of Hemisphere B. - 4)
A solid sphere is placed inside a cube such that it touches all six faces. What percentage of the cube's volume is not occupied by the sphere?
- 5)
If the radius of a sphere is increased to twice its original size, what is the ratio of the new surface area to the original surface area, as well as the proportion of the new volume to the original volume?
- 6)
A metal sphere having a radius of 10 centimeters is melted down and molded into 8 identical smaller solid spheres. What is the ratio of the surface area of the original sphere to the total surface area of all 8 smaller spheres?
- 7)
What will be the surface area of the sphere having 5.4 cm radius?
- 8)
Find the volume of the sphere whose diameter is 30 cm. (Use π = 3.14).
- 9)
Find the surface area of a sphere whose diameter is equal to 14 cm.
- 10)
The curved surface area of a sphere is 9856 cm2, find its diameter in m.
