# Practice problems of the surface area of a hemisphere

#### Number of problems found: 12

- Tent - spherical cap

I have a tent in the shape of a spherical cap. Assume we want the volume to be 4 cubic meters, to sleep two or three people. Assume that the material making up the dome of the ten is twice as expensive per square as the material touching the ground. What - Planetarium's 24241

The planetarium's dome is shaped like a hemisphere with a diameter of 17 m. Determine the size of the projection area - Half-sphere roof

The roof above the castle tower has the shape of a 12.8 m diameter half-sphere. What is this roof's cost if the cost of 1 square meter is 12 euros and 40 cents? - Hemisphere - roof

The shape of the observatory dome is close to the hemisphere. Its outer diameter is 11 m. How many kilograms of paint and how many liters of thinner are used for its double coat if you know that 1 kg of paint diluted with 1 deciliter of thinner will paint

- Calculation 43211

The roof is shaped like a hemisphere with a diameter of 8 m. Calculate how much m² of roofing is needed to cover the entire top if we count 15% for waste and residues and round the result to tenths of m². Use the constant pi rounded to two decimal places - The observatory

The dome of the hemisphere-shaped observatory is 5.4 meters high. How many square meters of sheet metal need to be covered to cover it, and must we add 15 percent to the minimum amount due to joints and waste? - Material 24841

The diameter of the ball screen is 30 cm. How many m² of fabric do we need to make if we add 5% of the material to be sewn? - Two hemispheres

In a wooden hemisphere with a radius r = 1, the carpenter created a hemispherical depression with a radius r/2. The bases of both hemispheres lie in the same plane. What is the surface of the created body (including the surface of the depression)? - Observatory's 81915

In our city, they decided to reconstruct the observatory's dome and cover it with sheet metal. At least how many square meters of sheet metal will they need if the dome is in the shape of a hemisphere with a diameter of 6m

- Calculate 64734

We cut a sphere with a diameter of 10 dm into two equal parts. Calculate the area of the cut. - Hemispherical 39681

What is the coverage area of the painting of a hemispherical dome with a diameter of 8 m? - Observatory

The observatory dome has the shape of a hemisphere with a diameter d = 14 m. Calculate the surface.

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