![]() ![]() The conical roof above the warehouse has a diameter of the lower part (base) d = 11.2 m and a height v = 3.3 m. How many kg of color must he buy if the manufacturer specifies the consumption of 1 kg to 3.3 m²? He needs to paint the roof with anticorrosion. Mr Peter has a metal roof cone shape with a height of 127 cm and radius 130 cm over well. How much money (CZK) will cost the roof cover sheet if 1 m² of metal sheet costs 152 CZK and if you need 15% extra for joints, overlays, and waste? The roof has the shape of a rotating cone shell with a base diameter of 6 m and a height of 2.5 m. ![]() How many crowns do we pay for color? If we need 50 cm³ of paint to paint, 1m² and 1l of paint cost CZK 80? How many m² of fabric is needed for production (including flooring) if 20% needs to be added to the minimum amount due to cutting wasteįorty identical traffic cones with a base diameter d = 3 dm and a height v = 6 dm should be painted on the outside with orange paint (without base). a) The tent is made of two layers of material. The cone-shaped tent is 3 m high, and the diameter of its base is 3.2 m. The volume of a cone is 1000 cm 3, and the area of the axis cut is 100 cm². Calculate the area ratio of cones that have the same height. The radii of the two cones are in the ratio of 5.7. a) What is the roof volume? b) How many dm² of wallpaper is used to glue the roof, i.e., the cone shell? c) What is the weight of the roof if it is made ofĬalculate a rotating cone's surface area and volume with a height of 1.25 dm and 17,8dm side. The cone side is 45 cm long, and the base radius is 27 cm. The rotating cone has a base circumference of 62.8 cm. Calculate the surface area of this cone. The cone's surface is 200 cm², and its height is 7 centimeters. ![]()
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March 2023
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