Sphere - practice for 12 year olds - last page
Number of problems found: 60
- Equator 6020
The Equator. ..40075 km train. ..300m. How many trains would fit on the Equator? - Calculate 69244
The surface of the sphere is 624 cm². Calculate its radius. - Earth parallel
Earth's radius is 6370 km long. Calculate the length parallel to latitude 50°. - Circumference 61944
Calculate the volume and surface of the planet Venus if its circumference is 12,000 km.
- Calculate 73534
The sphere has a diameter of 70 cm. Calculate its surface area and volume. - The inflated
The inflated gymnastic ball should have a diameter of 65 cm. How many times do we have to pump air into a full-blown ball with a bicycle inflator to inflate it if the working volume of the inflator is a cylinder with an inner diameter of 2 cm and a height - Diameter 48211
What is the diameter of the ball (for men) if it weighs 7,250 g and ρ = 7.8g / cm³ - Thousand balls
We must create a thousand balls from a sphere with a diameter of 1 m. What will be their radius? - The golf
The golf ball with a diameter of 43 mm is packed in a cube-shaped box. What percentage of the box volume is made up of a ball?
- Inscribed
The cube is inscribed in the cube. Determine its volume if the edge of the cube is 10 cm long. - Surface and volume
Calculate the surface and volume of a cylinder whose height is 8 dm and the radius of the base circle is 2 dm. - Spherical 21373
The spoon has the shape of half a spherical surface with a radius of 50 mm. What volume of fluid does it fit when filled to the brim? - Spherical 27051
How much fabric is needed to sew a spherical hot air balloon with a diameter of 15 m? How much air is needed to inflate the balloon? - Hemisphere-shaped 7829
The ice cream maker sold 6l of ice cream a day. How many hemisphere-shaped portions with a diameter of 6 cm could he make from the ice cream sold?
- 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? - 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 - Calculate 64734
We cut a sphere with a diameter of 10 dm into two equal parts. Calculate the area of the cut. - Observatory
The observatory dome has the shape of a hemisphere with a diameter d = 14 m. Calculate the surface. - Portioning ice cream
How many scoops of ice cream can we make using a scoop in the shape of a spherical canopy with a radius of 2.5 cm and a height of 4 cm. We have a 2-liter ice cream tub available. When portioning, we will follow the exact measure.
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