# Surface area + expression of a variable from the formula - math problems

#### Number of problems found: 181

• Rotary cylinder 2
Base circumference of the rotary cylinder has same length as its height. What is the surface area of cylinder if its volume is 250 dm3?
• Cuboid - ratios
The sizes of the edges of the cuboid are in the ratio 2: 3: 5. The smallest wall have area 54 cm2. Calculate the surface area and volume of this cuboid.
• Cuboid surface
Determine surface area of cuboid if its volume is 52.8 cm cubic and length of the two edges are 2 cm and 6 cm.
• Edge c
Find the edge c of cuboid if an edge a = 20 mm, b = 30 mm and surface area S = 8000 mm2.
• Cube 5
The content area of one cube wall is 32 square centimeters. Determine the length of its edges, its surface and volume.
• Cube surface and volume
The surface of the cube is 500 cm2, how much cm3 will be its volume?
• Pilot
How high is the airplane's pilot to see 0.001 of Earth's surface?
• 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?
• Cube
The sum of all cube edges is 30cm. Find the surface area of the cube.
• Regular 4-sided pyramid
Find the area (surface area) of a regular 4-sided pyramid if its height is 20 m and the wall height is 23 m.
• Above Earth
To what height must a boy be raised above the earth in order to see one-fifth of its surface.
• Find the
Find the surface area of a regular quadrilateral pyramid which has a volume of 24 dm3 and a height of 45 cm.
• The cube
The cube has a surface area of 216 dm2. Calculate: a) the content of one wall, b) edge length, c) cube volume.
• Cone and the ratio
Rotational cone has a height 23 cm and the ratio of the base surface to lateral surface is 7: 9. Calculate a surface of the base and the lateral surface.
• Prism
Calculate the height of the prism having a surface area 448.88 dm² wherein the base is square with a side of 6.2 dm. What will be its volume in hectoliters?
• Cuboid and ratio
Cuboid has dimensions in ratio 1:2:6 and the surface area of the cuboid is 1000 dm2. Calculate the volume of the cuboid.
• 3rd dimension
The block has a surface of 42 dm2 and its dimensions are 3 dm and 2 dm. What is the third dimension?
• Angle of deviation
The surface of the rotating cone is 30 cm2 (with circle base), its surface area is 20 cm2. Calculate the deviation of the side of this cone from the plane of the base.
• Cube 8
The surface of the cube is 0.54 m2. Calculate the length of the cube edge.

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Examples for the calculation of the surface area of ​​the solid object . Expression of a variable from the formula - math word problems.