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How to pack two rectangular tissue paper with 5cm in length, 4cm in width and 2cm in height in a large carton? What is the minimum surface area of the carton?
Lay it flat on two layers
(2 × 2 × 4) × 2 × 4 × 4 + 2 × 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 4 + 2 × 2
Cut a cylinder with a bottom radius of 4cm and a height of 5cm into an approximate cuboid. What is the surface area of the cuboid?
When a cone with a height of 5cm and a circumference of 12.56 is cut perpendicular to the bottom along the height, the surface area of two identical cones is increased ()
The big question is 64
The first space is a triangle
12.56 divided by 3.14 = 4
4*5/2*2=20
Second vacancy 20
1. How much can a cuboid with a length of 5cm, a width of 4cm, and a height of 3cm be cut into two cuboids?
2. A cone is 24 cm high and 80 cubic cm in volume, 40 cubic cm less than a cylinder with the same base. How high is the cylinder?
Yilan left in the book,
1. How much can a cuboid with a length of 5cm, a width of 4cm, and a height of 3cm be cut into two cuboids?
5 × 4 × 2 = 40 (cm2)
2. A cone is 24 cm high and 80 cubic cm in volume, 40 cubic cm less than a cylinder with the same base. How high is the cylinder?
Cylinder volume:
80 + 40 = 120 (cm2)
The column height is:
120 ^ [80 × 3 ^ 24] = 12 (CM)
4200 cubic centimeter = () cubic decimeter = () cubic meter
4200 cubic centimeter = (4.2) cubic decimeter = (0.0042) cubic meter
How many liters is one cubic meter?
1 cubic meter = 1000 cubic decimeter
1 cubic decimeter = 1 liter
1000 cubic decimeter = 1000 liters
How many liters is 1.5 cubic meters
1500
1 cubic meter = 1000 liters
How many liters is 1.2 cubic meters
1200 liters
How many liters is a cubic meter
1 liter (L) is the size of a cube with a side length of 1dm (decimeter)
So a cubic meter is 1000 liters
How many liters is a cubic meter of diesel
1 m3 = 1000 liters
Whether it's diesel, gasoline, kerosene, water or milk
How many cubic meters of air is one liter of air equal to
All the conversion between liter and cubic meter is based on water. What is the conversion between liter and cubic meter of air?
Same
1L = 0.001 M3
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