(1) Uncle Wang wants to make a cuboid tin bucket with a length of 36cm, a width of 25cm and a height of 4cm. How many square decimeters of tin do you need? Xiao Ming wants to make a cloth cover for the TV. The length of the TV is 50cm, the width is 45cm, and the height is 32cm. How many square decimeters does it take to make this cloth cover? (3) How many cm thick is the steel plate forged from a cube with an edge length of 0,9 m into a steel plate with a length of 9 m and a width of 3 m?

(1) Uncle Wang wants to make a cuboid tin bucket with a length of 36cm, a width of 25cm and a height of 4cm. How many square decimeters of tin do you need? Xiao Ming wants to make a cloth cover for the TV. The length of the TV is 50cm, the width is 45cm, and the height is 32cm. How many square decimeters does it take to make this cloth cover? (3) How many cm thick is the steel plate forged from a cube with an edge length of 0,9 m into a steel plate with a length of 9 m and a width of 3 m?

(1) Uncle Wang wants to make a cuboid tin bucket with a length of 36cm, a width of 25cm and a height of 4cm. How many square decimeters of tin do you need\
36*25+36*4*2+25*4*2
=900+288+200、
=1388 square centimeters
=13.88 square decimeters
Xiao Ming wants to make a cloth cover for the TV. The length of the TV is 50cm, the width is 45cm, and the height is 32cm. How many square decimeters does it take to make this cloth cover?
50*45+50*32*2+45*32*2、
=2250+3200+2880、
=8330 square centimeters
=83.3 square decimeters
(3) A cube with an edge length of 0 or 9 meters is forged into a steel plate with a length of 9 meters and a width of 3 meters. How many centimeters is the steel plate thick
0.9*0.9*0.9/（9*3）、
=0.729/27、
=027m
=2.7 cm

The bottom of a cuboid tin bucket without a cover is a square with a side length of 4 decimeters and a height of 1 meter. How many square decimeters of tin does it take to make such a bucket
How many liters of water can a bucket hold

Need sheet metal 4x4 + 4x4x10 = 16 + 160 = 176 square decimeters
Volume 4x4x10 = 160 liters

To make a rectangular tin bucket without a cover, it takes 96 square decimeters to remove the tin. It is known that the bottom of the bucket is a square with a side length of 4 decimeters. How many liters of water can this bucket hold?

What's the bottom area
4 × 4 = 16 square decimeters
What is the perimeter of the bottom surface
4 × 4 = 16 decimeters
Gao Shi
(96-16) △ 16 = 5 decimeters
This bucket can hold water
4 × 4 × 5 = 80 cubic decimeter = 80 liter