# The surface area of sphere problems

#### Number of problems found: 42

• Sphere area
A cube with edge 1 m long is circumscribed sphere (vertices of the cube lies on the surface of a sphere). Determine the surface area of the sphere.
• Cube and sphere
Cube with the surface area 150 cm2 is described sphere. What is sphere surface?
• Sphere
Intersect between plane and a sphere is a circle with a radius of 60 mm. Cone whose base is this circle and whose apex is at the center of the sphere has a height of 34 mm. Calculate the surface area and volume of a sphere.
• Sphere vs cube
How many % of the surface of a sphere of radius 12 cm is the surface of a cube inscribed in this sphere?
• Sphere VS
Find the surface and volume of a sphere that has a radius of 2 dm.
The radius of the sphere we reduce by 1/3 of the original radius. How much percent does the volume and surface of the sphere change?
• Cube from sphere
What largest surface area (in cm2) can have a cube that was cut out of a sphere with radius 43 cm?
• Sphere A2V
The surface of the sphere is 241 mm2. What is its volume?
The surface of the sphere is 60 cm square. Calculate its radius; result round to tenth of cm.
• Earth's surface
The greater part of the earth's surface (r = 6371 km) is covered by oceans; their area is approximately 71% of the Earth's surface. What is the approximate area of the land?
• The volume
The volume of the sphere is 1 m3, what is its surface?
• Twice of radius
How many times does the surface of a sphere decrease if we reduce its radius twice?
• Sphere
The surface of the sphere is 12100 cm2, and the weight is 136 kg. What is its density?
• Iron sphere
Iron sphere has weight 100 kg and density ρ = 7600 kg/m3. Calculate the volume, surface and diameter of the sphere.
• Equilateral cylinder
A sphere is inserted into the rotating equilateral cylinder (touching the bases and the shell). Prove that the cylinder has both a volume and a surface half larger than an inscribed sphere.
• A spherical segment
A spherical section whose axial section has an angle of j = 120° in the center of the sphere is part of a sphere with a radius r = 10 cm. Calculate the cut surface.
• Sphere slices
Calculate the volume and surface of a sphere if the radii of parallel cut r1=31 cm, r2=92 cm, and its distance v=25 cm.
• Chemical parison
The blown parison (with shape of a sphere) have a volume 1.5 liters. What is its surface?
• Spherical cap
Place a part of the sphere on a 4.6 cm cylinder so that the surface of this section is 20 cm2. Determine the radius r of the sphere from which the spherical cap was cut.
• Sphere parts, segment
A sphere with a diameter of 20.6 cm, the cut is a circle with a diameter of 16.2 cm. .What are the volume of the segment and the surface of the segment?

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Examples for the calculation of the surface area of ​​the solid object . Sphere Problems.