One is just cut into two squares, and the surface area increases by 32 square centimeters. How many cubic centimeters is the volume of this rectangle? Come on,

One is just cut into two squares, and the surface area increases by 32 square centimeters. How many cubic centimeters is the volume of this rectangle? Come on,

One surface area of cube is 32 △ 2 = 16 square centimeter
The length of the cube is 4cm
The cuboid volume is 4 × 4 × 4 × 2 = 128 cubic centimeters

After sawing a square into two rectangles, the surface area increases by 32 square centimeters. What is the volume of this cube

32 △ 2 = 16 square centimeter
16=4×4
So the edge length is four centimeters
Volume: 4 × 4 × 4 = 64 cm3

The surface area of a square is 112 square centimeters less than that of a rectangle. The volume of a rectangle is several cubic centimeters

What is the perimeter of the base of the cuboid
112 △ 7 = 16 (CM)
What is the length and width of a cuboid
16 △ 4 = 4 (CM)
What is the height of a cuboid
4 + 7 = 11 (CM)
What is the volume of a cuboid
4 × 4 × 11 = 176 (cm3)

In a 10 cm long and 0.5 cm wide rectangle, draw the largest circle whose circumference is (). [another topic]
This year's output is 20% higher than that of last year. Then, this year's output is ()% higher than that of last year
The income in 2006 is 150% of that in 2005, so the income in 2006 is ()% higher than that in 2005
The area of the Atlantic Ocean is about 1 / 2 of that of the Pacific Ocean, which is ()% less than that of the Pacific Ocean

Draw the largest circle in a 10 cm long and 0.5 cm wide rectangle. The circumference of the circle is (1.57 cm)
This year's output is 20% higher than that of last year, so this year's output is (120)%
The income in 2006 is 150% of that in 2005, so the income in 2006 is (50)% higher than that in 2005
The area of the Atlantic Ocean is about 1 / 2 of that of the Pacific Ocean, which is 50% less than that of the Pacific Ocean

Cut the biggest circle in a rectangle of 5cm long and 4cm wide. The circumference of the circle is______ The area is______ ．

3.14 × 4 = 12.56 (CM); 3.14 × (4 △ 2) 2, = 3.14 × 4, = 12.56 (cm2). Answer: the circumference of this circle is 12.56cm, and the area is 12.56cm2. So the answer is: 12.56cm; 12.56cm2

Cut the biggest circle in a rectangle of 5cm long and 4cm wide. The circumference of the circle is______ The area is______ ．

3.14 × 4 = 12.56 (CM); 3.14 × (4 △ 2) 2, = 3.14 × 4, = 12.56 (cm2). Answer: the circumference of this circle is 12.56cm, and the area is 12.56cm2. So the answer is: 12.56cm; 12.56cm2

A small rectangle with a width of 5cm is cut from a rectangular board with an area of 150cm2, and a square board is obtained. The length and width of the original rectangle are calculated
We need to be specific and urgent

Let the width of a rectangle be x, then the length is x + 5
So x * (x + 5) = 150
The solution is x = 10 or x = - 15
So the rectangle is 15cm long and 10cm wide

A small rectangle with a width of 5cm is cut from a rectangular board with an area of 150cm ^ 2 to get a square board and calculate the length and width of the original rectangular board

Because a small rectangle 5cm wide is cut from the rectangle to get a square (the length and width of the square are equal)
So the length of the original rectangle is 5cm more than the width, and the width is xcm
Then (x + 5) * x = 150
x^2+5x-150=0
(x-10)(x+15)=0
X = 10 (x = - 15, meaningless, rounding off)
So the length (10 + 5 =) is 15cm and the width is 10cm

There is a square lawn. If one side is increased by 5cm and the adjacent side is increased by 8cm, the area of the lawn will be increased by 131cm. How many cm is the side length of the square lawn?

As shown in the figure: suppose the length of the original square is ACM, then 5A + 8A + 8 × 5 = 131 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 13A = 131-40 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 13A = 91 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; a = 7 A: the side length of a square is 7 cm

The perimeter of a semi-circular lawn is 128.5cm. How about its floor area?

Let R be the radius
Perimeter = 2R + π r = 128.5cm
So (2 + 3.14) r = 128.5
r=25
So the area is [π R ^ 2] / 2 = 3.14 * 25 * 25 / 2 = 981.25