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A granary full of rice is 0.9m high, with a cone on the top and a cylinder on the bottom. The perimeter of the bottom is 12.56m, and the height of the cylinder is 0.5m 1. How much rice can this granary hold? 2. If the weight of rice is 500kg per cubic meter, how many tons of rice can this granary hold?
The volume that can hold rice = volume of cone part + volume of cylinder part = bottom area × cone height △ 3 + bottom area × cylinder height = bottom area × (cone height △ 3 + cylinder height) = 3.14 × (bottom circumference △ 3.14 △ 2) & # 178; × (cone height △ 3 + cylinder height) = 3.14 × (12.56 △ 3.14 △ 2) & # 178; × ((0.9-0.5) × 3 + 0.5
A grain bin full of rice is conical on the top and cylindrical on the bottom. The circumference of the bottom of the cylinder is 62.8m, and the height of the piled rice is 0.3m
How many cubic meters of rice can the grain store hold? If each cubic meter weighs 600 kg, how many tons can it hold?
Radius 62.8 △ 3.14 △ 2 = 10m
Volume 3.14 × 10 × 10 × 2 + 1 / 3 × 3.14 × 10 × 10 × 0.3
=628+31.4
=659.4 M3
Weight 600 × 659.4 = 395640kg = 395.64t
A grain bin full of rice is cone-shaped on the top and cylinder shaped on the bottom. The circumference of the bottom of the cylinder is 12.56 meters, the height is 6 meters, and the height of the cone is 3 meters
What's the volume of this grain bin full of rice?
12.56/3.14/2=2(m)
2 * 2 * 3.14 * 6 = 75.36 (M3)
2 * 2 * 3.14 * 3 * 1 / 3 = 12.56 (M3)
75.36 + 12.56 = 87.92 (M3))
A rice bin is conical above and cylindrical below. The circumference of the bottom of the cylinder is 18.84 meters and the height is 2 meters. The cone is 0.6 meters high
Each cubic meter of rice weighs 600 kg, and the rice yield is 70%. How many kg of rice can be produced from this pile of rice? (keep the number to one decimal place)
18.84 ﹣ 3.14 ﹣ 2 = 3M Bottom radius
3.14 × 3 & sup2; × 2 + 3.14 × 3 & sup2; × 0.6 △ 3 = 62.172 cubic meters volume
62.172 × 600 × 70% ≈ 26112.2kg The weight of rice
A paddy bin, the top is a cylinder, the bottom is a cone, the circumference of the cylinder bottom is 9.42 meters, the height of the cone is 0.6 meters, calculate the volume
Bottom radius of cylinder = 9.42 △ 3.14 △ 2 = 1.5
Cylinder volume = 1.5 & # 178; × 3.14 × 2 = 14.13 M3
Cone bottom radius = 1.5
The volume is 1.5 & # 178; × 3.14 × 0.6 △ 3 = 1.413m3
1.413 + 14.13 = 15.543m3
There is a pile of rice with a cone on the top and a cylinder on the bottom. The circumference of the bottom of the cylinder is 6.28 meters, 5 meters, and the height of the cone is 1.5 meters. How many kilograms does this pile of rice weigh? (500 kilograms per cubic meter of rice)
The radius of the bottom surface is: 6.28 △ 3.14 △ 2 = 1m
Volume of cylinder: 3.14 × 1 & # 178; × 1.5 = 4.71
The volume of cone is: 3.14 × 1 & # 178; × 1.5 / 3 = 1.57
The volume of grain is 4.71 + 1.57 = 6.28 cubic meters
Weight: 6.28 × 500 = 3140kg
A grain bin full of rice is cone-shaped on the top and cylindrical on the bottom. The circumference of the bottom of the cylinder is 6.28 meters, the height is 1.5 meters, and the height of the cone is 1.5 meters
45 meters. How many meters of rice can this grain store hold?
Find the radius of the bottom first
2 = 1 (m)
And then find the bottom area. The bottom area is the same
3.14 × 1 & # 178; = 3.14 (M2)
Cylinder volume
3.14 × 1.5 = 4.71 (M3)
Cone volume
1 / 3 × 314 × 0.45 = 0.471 (M3)
Total grain storage volume
4.71 + 0.471 = 5.181 (M3)
There is a storage of rice with a cone on the top and a cylinder on the bottom. The circumference of the bottom of the cylinder is 6.28 meters, the height is two meters, and the height of the cone is 0.3 meters. How many kilograms does the storage weigh? (650 kilograms per cubic meter of rice)
Cylinder radius r = 6.28 / 2 π = 1m, area s = π R ^ 2 = 3.14m2, volume = sh = 2 * 3.14 = 6.28m3. Cone volume v = 1 / 3SH (v = 1 / 3 π R ^ 2H) = 1 / 3 * 3.14 * 0.3 = 0.314m3. Total volume = 6.28 + 0.314 = 6.594m3. Rice weight = 650 * 6.594 = 4286.1kg
The length of a cuboid swimming pool is 50m, the width is 30m, and the depth is 1.5m. The four walls and the bottom of the pool are plastered with water. How many tons of cement is required per square meter
50×30+50×1.5×2+30×1.5×2
=1500+150+90
=1740 (M2)
1740 × 15 = 26100 (kg) = 26.1 (T)
A rectangular swimming pool, 6 meters long, 25 meters wide and 2 meters deep. What's the area of a layer of cement on the bottom and inner wall of the swimming pool
6×25+6×2×2+25×2×2
=150+24+100
=274 (M2)
Apply a layer of cement to the bottom and inner wall of the swimming pool, with an area of 274 square meters
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