Area - examples

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  1. Trapezoid 15
    trapezoid3 Area of trapezoid is 266. What value is x if bases b1 is 2x-3, b2 is 2x+1 and height h is x+4
  2. Rainfall
    rain_5 On Thursday, fell 1 cm rainfall. How many liters of water fell to rectangular garden with dimensions of 22 m x 35 m?
  3. Area of trapezoid
    trapezoid The trapezoid bases are and 8 dm and 9 cm. His height is 2 cm. Calculate the area of trapezoid.
  4. On the farm
    farm The farm took 182 tons of potatoes from 14 hectares. How many tons of potatoes taken from one hectare?
  5. Garden
    garden Trapezoid garden has parallel sides 29 m and 37 m. Its area is 165 square meters. What is the width of the garden?
  6. Present
    prezent Gift box has rectangular shape with dimensions of 3×3×5 cm. Martin wants to cover with square paper with sides of 10 cm. How much paper left him?
  7. Wiring
    install_pipes Conduit has a cross section 222 mm. Maybe put it into 6 conductors with a cross section S2 $mm2?
  8. Rectangle A2dim
    Rectangle Calculate the side of the rectangle, if you know that its area is of 14520 m2 and one side is 121 m.
  9. Pipes
    water_pipe Water pipe has a cross-section 1939 cm2. An hour has passed 567 m3 of water. How much water flows through the pipe with cross-section 300 cm2 per 14 hours if water flow same speed?
  10. Windows
    wall_w_windows Calculate the area of masonry to build wall with dimensions of 19 m × 4 m with 5 windows of size 50 cm × 50 cm.
  11. Garden
    lichobeznik_zachradka The garden has two opposite parallel fences. Their distance is 33.2 m. Lengths in these two fences are 66.7 meters and 28.1 meters. Calculate the area of this garden.
  12. Garden
    garden_1 Area of square garden is 6/7 of triangle garden with sides 96 m, 60 m and 60 m. How many meters of fencing need to fence a square garden?
  13. Observatory
    kopula Observatory dome has the shape of a hemisphere with a diameter d = 7 m. Calculate the surface.
  14. Expansion
    magnification If one side of the rectangle is larger 3-times and second 4-times, what percentage increases the area of rectangle?
  15. Carpet
    koberec The room has rectangle shape with dimensions 4.5 m × 4.2 m. How many meters of carpet a width of 3 need to buy to cover the entire room?
  16. Pillar
    sliced_pyramid Calculate volume of pillar shape of a regular tetrahedral truncated pyramid, if his square have sides a = 17, b = 22 and height is v = 36.
  17. Sand pile
    sandpile_1 Auto sprinkled with sand to approximately conical shape. Workers wanted to determine the volume (amount of sand) and therefore measure the circumference of the base and the length of both sides of the cone (over the top). What is the volume of the sand c
  18. Area
    squares Calculate: ?
  19. Posters
    posters Column with posters in the form of a cylinder is 3.3 m high and its diameter is 1.5 m. What is the content area for which it is possible to stick posters?
  20. Rainfall
    storm Annual rainfall in our country are an average of 854 mm. How many m3 of water rains on average per hectare?

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