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A cone-shaped sand pile has a bottom circumference of 12.56m and a weight of 1.5 tons per cubic meter of sand. How many tons of sand is this pile? fast
Bottom radius: 12.56 ÷ (2 × 3.14) = 2m
Bottom area: 3.14 * 2 * 2 = 12.56 square meters
The weight of this pile of sand: (1 / 3) * 12.56 * 2 * 1.5 = 12.56 tons
There is a cone-shaped sand pile on the construction site. The perimeter of the bottom is 12.56m and the height is 1.2m. What is the volume of the sand pile?
The bottom radius of sand pile is 12.56 △ 3.14 △ 2 = 2m
The volume of sand pile is 2 × 2 × 3.14 × 1.2 × 1 / 3 = 5.024 cubic meters
A cone-shaped sand pile has a perimeter of 6.28m at the bottom and a height of 0.9m. How far can it be paved with this pile of sand 3cm thick on a 4m wide road?
emergency
Bottom radius of conical sand pile: 6.28 / (3.14 * 2) = 1m,
Volume of conical sand pile: 1 / 3 * 3.14 * 1 * 1 * 0.9 = 0.942 m2,
3cm = 0.03m,
Capacity: 0.942 / (4 * 0.03) = 7.85m
The perimeter of the bottom surface of a cone-shaped sand pile is 18.84 meters, 5 meters. If the sand weight per cubic meter is 2 tons, how many tons is the sand weight?
Bottom radius = 18.84/3.14/2 = 3M
Then volume = 3.14 * 3 * 3 * 1.5/3 = 14.13 m3
Then weight = 14.13 * 2 = 28.26 tons
A cone-shaped sand pile has a circumference of 18.84 meters at the bottom, a height of 2.5 meters, and a weight of 1.8 tons per cubic meter of sand. How much is this pile of sand
Hello
Bottom radius = 18.84 △ 3.14 △ 2 = 3 (m)
Bottom area = 3.14 × 3 & # 178; = 28.26 (M2)
Volume = 1 / 3 × 28.26 × 2.5 = 23.55 (M3)
Sand weight = 23.55 × 1.8 = 42.39 (T)
A cone-shaped sand pile, the perimeter of the bottom is 18.84 meters, 5 meters. Each cubic meter of sand weighs 1.8 tons. How many tons is this pile of sand?
18.84 △ 3.14 △ 2 = 3 (m)
3.14 × 3 × 3 × 2.5 × 1 / 3 = 23.55 (M3)
23.55 × 1.8 = 42.39 (T)
1. A cone-shaped sand pile, the perimeter of the bottom is 18.84 meters, if the weight of each cubic meter of sand is 730 kg,
1. The circumference of the bottom of a cone-shaped sand pile is 18.84 meters. If every cubic meter of sand weighs 730 kg, how many kg does this pile of sand weigh
2. For a circular tube, the outer radius is 6cm, the inner radius is 5cm, and the tube length is 25cm
1. Base radius = 18.84 △ 3.14 △ 2 = 3M; ground area = 3.14 × 3 × 3 = 28.26 m2; volume = base area × height × (1 / 3) = 28.26 × 2 × (1 / 3) = 18.84 m3; weight = 18.84 × 730 = 13753.2kg ≈ 13753kg; 2. Base ring area = 3.14 × (6 & # 178; - 5 & # 178;) = 3.1
There is a cone-shaped sand pile in a construction site. The perimeter of its bottom surface is 18.84 meters and the height is 1.2 meters. If the weight of each cubic meter of sand is 1.6 tons, how much is the sand pile
The number obtained keeps the whole number
Bottom radius: 18.84 / (2 * 3.14) = 3M
Volume: 3.14 * 3 * 3 * 1.2/3 = 11.304 M3
Weight of sand: 11.304 * 1.6 = 18.0864 ≈ 18 tons
A cylindrical pool, bottom circumference 50.24 meters, 2 meters deep, in its bottom and around the plaster cement, plaster cement part of the area is how many square meters? How many cubic meters of water can this pool hold at most?
(1) Radius: 50.24 △ 3.14 △ 2 = 8 (meters) bottom area: 3.14 × 82 = 200.96 (square meters) 50.24 × 2 + 200.96 = 100.48 + 200.96 = 301.44 (square meters) answer: the cement part is 301.44 square meters. (3) 3.14 × 82 × 2 = 3.14 × 64 × 2 = 401.92 (cubic meters) answer: this water
1. The perimeter of the bottom surface of a cylindrical pool is 62.8 meters, and the pool depth is 3 meters. If cement is applied on the bottom surface and around the pool, what is the area of the cement coated part
How many cubic meters of water can the rice pool hold after repair?
I need to try
Bottom radius: 62.8 △ 3.14 △ 2 = 10m
Area: 62.8 × 3 + 3.14 × 10 & # 178; = 502.4 square meters
Volume: 3.14 × 10 & # 178; × 3 = 942 M3
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