Give me the formula for the area, length, volume and equation of the equation of the first geometry

Square (side length x, area y):

The square of x is equal to y

Rectangle (length A, width B, area C):

ab=c triangle (base is a, height is b, area is c):

ab/2=c

Trapezoidal (upper bottom edge is A, lower bottom edge is B, height is C, area is D):

a+b) multiplied by c divided by 2 equals d

Length A, Width B, Height C

Area s=a*b

Volume v=a*b*c

Equations: What equation do you want?

1. The area of the cuboid = (length and width + width and height + length and height) 2.

2. The volume of the cuboid = length, width and height. Let the length, width, and height of a cuboid be a, b, and c, respectively, then its volume: .

Because the cuboid is also a type of prism, the formula for calculating the volume of the prism is also applicable to the simple plexus. Box volume = base area height, i.e. (s is the base area).

3. Cuboid (also known as cuboid) is a straight quadrangular prism with a rectangular cherry blossom at the bottom (or a straight parallelepiped with a rectangular bottom surface at the top and bottom). It is made up of six faces, the opposite sides of which are equal in area, and there may be two sides (four sides may be rectangular, or all six sides may be rectangular) that are squares.

Let the length, width, and height of a cuboid be a, b, and c, respectively, then its surface area is s cuboid = (ab+bc+ca)*2, which is also equal to 2ab+2bc+2ca; Formula: Surface area of the box = length and width 2 + width and height 2 + length and height 2, or: surface area of the box = (length and width + width and height + length and height) 2;Volume Formula:

v=abc。

A cuboid (also known as a cuboid) is a straight quadrangular prism with a rectangular base (or a straight parallelepiped with a rectangular bottom and a rectangle at the top and bottom). It is made up of six faces, which are equal in area to each other, and two faces (four faces may be rectangular, or all six faces are rectangular) are squares.

1. The two are different in type: the rectangle is a flat figure with a volume of 0. Whereas, a box is a three-dimensional figure that calculates the volume, and the volume is not 0.

2. There is a difference in the shape of the two: the rectangle has only 4 sides and one face. Whereas, the cuboid has 12 edges and 6 faces.

3. There is a difference in the nature of the two: the cuboid has volume and surface area, and the rectangle has no volume.

1. The area formula is: = (length and width + width and height + length and height) Surface area formula: s=2*(ab+bc+ca).

2. If the length, width and height of a cuboid are a, b and c respectively, then its surface area is s rectangular trouser rolling mu = (ab + bc + ca) * 2, which is also equal to 2ab + 2bc + 2ca; Hussen's formula: the surface area of the cuboid = length and width 2 + width and height 2 + length and height 2, or: the surface area of the box is ready = (length and width + width and height + length and height).

1. The formula for the area is as follows: = (length and width + width and height + length and height) The surface area formula: Husen s = 2 * (ab + bc + ca).

2. Let the length, width and height of a cuboid be a, b, and c respectively, and its surface area is s cuboid = (ab + bc + ca) * 2, which is also equal to 2 ab + 2bc + 2ca; Formula: Surface area of the box = length and width 2 + width and height 2 + length and height 2, or: surface area of the box = (length and width + width and height + length and height).

1. The area of the rectangle = length and widthThe letter indicates: s=ab

Length = Area of the Rectangle Width a=s b

The width of the rectangle = area and the length b=s a

2. The area of the square = the length of the side and the length of the side.

The letter indicates: s= a

3. The area of the parallelogram = the height of the base.

The letter indicates: s=ah

The height of the parallelogram = the area of the base h=s a

Bottom = Area of the parallelogram High Disturbance Vertical a=s h<>

The formula for the surface trapped plum product of common geometries is as follows:

1. The surface area of the cuboid = (length and width + length height width and height) 2.

2. The surface area of the cube = edge length Ridge length 6.

3. The surface area of the cylinder = the upper and lower bottom surface area + the side area.

4. The surface area of the bevel = the area of the two triangles + the sum of the areas of the three trapezoids.

Categories: Education Science >> Admission >> High School Entrance Examination Question Description:

A rectangular limb mountain with an area of 888 square centimeters to make a rectangular box without a lid, the length of the box is required to be 25 centimeters, the width is twice the height, and the width and height of the box should be.

Analysis: Set the height to x, and the width of the calendar is 2x

According to the title:

2*25*x+2*2x*x+25*2x=888. x1 = x2 = out of place, discard).

So the width is 2x=2*

6 2 = 3 calculates the height of the cuboid, so that we know the length of the cuboid 4, width 2, height 3, the volume of the box is the length times the width times the height, 4 2 3 = 24

The six sides of the solution box are rectangular.

It can be seen from the title.

The underside of the box is a rectangle with a length of 4 and a width of 2.

From the left, the area of the rectangle is 6 = 2 times the height of the box, so the height of the box is 3, then the volume of the original box = the base area of the box is high.

i.e. v=4 2 3=24

Take the area 6 on the left and multiply it by its width 2, 6x2=12, and if it is arranged differently, then 6x4=24

High = 6 2 = 3

The volume of the box = 4 2 3 = 24

Rectangles are flat shapes and have no volume.

Box volume = length x width x height.

A three-dimensional figure enclosed by six rectangles (in the special case two opposite sides are squares) is called a cuboid. Cube.

Also special cuboids. Cuboid: A closed three-dimensional figure surrounded by six rectangles is called a cuboid, and the opposite side of any one of the sides of the cuboid is exactly the same as it.

Box surface area: long multiplication.

Width multiplied by height multiplied by width multiplied by height multiplied by two.

Example] How many centimeters is the length of the cuboid steel to forge a cube steel billet with a surface area of 10 square centimeters?

Analysis: The key to solving this problem is that the billet has changed from a cube to a cuboid of steel, and the shape has changed, but the volume has always remained the same, so the liquid can be hidden through the edge length of the cube, and the volume of the cuboid is high from the area of the bottom of the box, and the unknown is found.

Solution: Seepage according to the volume formula of the cube.

v a volume of a cuboid The volume of a cube is 20 (cubic centimeters.

The volume of the box with a base area is high.

That is, the height of the cuboid is 203 10 800 (cm).

A: The length of this steel is 800 cm.

A cuboid wooden block, from top to bottom, from left to right, from front to back, each chisel a square hole with a side length of 2 cm, and pass through its center to find the volume of the wooden block after chiseling. Length times width times height, minus 2x2x width, minus 2x2x height + 2x2x2