# Cardboard

How many m2 of cardboard are needed to make the cuboid with dimensions 40 cm 60 cm and 20 cm?

Result

x =  0.88 m2

#### Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! #### To solve this example are needed these knowledge from mathematics:

Do you want to convert area units?

## Next similar examples:

1. Glass aquarium How many m2 of glass are needed to produce aquarium with bottom dimensions of 70 cm x 40 cm and 50 cm high?
2. Children's pool Children's pool at the swimming pool is 10m long, 5m wide and 50cm deep. Calculate: (a) how many m2 of tiles are needed for lining the perimeter walls of the pool? (b) how many hectoliters of water will fit into the pool?
3. Recipe A recipe requires 2 pounds of flour. If a chef wants to triple the recipe, how many ounces of flour will be needed?
4. Pound2kilos How many pounds make 1 kilograms?
5. Basen How many square meters of tiles we need to tile the walls and floor of the pool 15 meters long, six meters wide and two meters?deep
6. One hectare How many square meters are one hectare?
7. Sewing The lady cut off one half of cloth. She needed three-quarters of this piece to sew a skirt. What part of the original piece of cloth still remained?
8. Metal box How much metal we need for the production of box with dimensions 5 dm, 30 cm and a height of 1 m? Add 12% of the waste and folds.
9. Aquarium II Calculate how much glass we need to build an aquarium with a rectangular shape with base 70 cm × 70 cm and a height of 70 cm, if the waste is 2%. Aquarium haven't top glass.
10. Surface area Calculate the surface area of a four-sides 2-m high prism which base is a rectangle with sides 17 cm and 1.3 dm
11. Cuboid box Cuboid box have dimensions of 30 cm, 25 cm and 40 cm. Sketch its network and compute surface area of box.
12. Observatory Observatory dome has the shape of a hemisphere with a diameter d = 10 m. Calculate the surface.
13. Square prism A square prism has a base with a length of 23 centimeters, what is the area in square centimeters of the base of the prism?
14. Area Calculate: ?
15. Rape The agricultural cooperative harvested 525 ares of rape, of which received 5.6 tons of rape seeds. Calculate the yield per hectare of rape.
16. Colza In the agricultural cooperative harvested 525 ares of colza, of which received 5.6 tons of seeds. Calculate the yield per hectare.
17. Customary length Convert length 65yd 2 ft to ft