What is the volume formula of solid triangle? chinese yes

What is the volume formula of solid triangle? chinese yes

Volume = base area of cone × height of cone △ 2

To square, rectangle, triangle, trapezoid, circle, cuboid, cube, cylinder, cone specific characteristics and all formulas!
For example, the surface area of cone = π R & # 178; * 2 + 2 π R * h, and the characteristics of cuboid: 8 vertices, 12 edges, etc,

Cylinder surface area: 2 * π * square of bottom circle radius + circumference of bottom circle * height volume: π * square of bottom circle radius * height
Surface area of cone: π * square of radius of bottom circle + perimeter of bottom circle * long volume of generatrix: (1 / 3) * π * square of radius of bottom circle * height
Surface area of sphere: 4 * π * square volume of sphere radius: (4 / 3) * π * cubic power of sphere radius

What is the square area formula? Triangle rectangle trapezoid parallelogram circular cylinder cone

S positive = a * a
S 3 = 1 / 2 ah
S length = ab
S ladder = (a + b) H / 2
S = ah
S Cylinder = π R2 + π DH
S cone = n degrees / 360 degrees * π R2 + π R2
Like 2 is square

Volume and area formula of cube?

Cube volume = edge × long edge × edge length
Surface area of cube = edge length × edge length × 6

The unified volume formula of cuboid and cube is ()

The unified volume formula of cuboid and cube is (base area × height)

The volume formula of cuboid and cube can be unified as ()

The volume formula of cuboid and cube can be unified as (volume = bottom area × height)

The number of male students in class 6-2 is 8 / 9 of that of female students. When one female student is transferred, the number of male students is 6 / 7 of that of female students
How many people each?

The number of female students x, male students 8x / 9; can get: 8x / 9 = (6 / 7) * (x + 1);
The solution, x = 27
So there were 24 boys and 27 girls

The number of male students in class 6 (1) is 8 / 9 of that of female students. When one female student is transferred, the number of male students is 6 / 7 of that of female students?

8 / 9-6 / 7 = 2 / 63 number of female students before 6 / 7 * 1 = 6 / 7: 6 / 7 divided by 2 / 63 = 27 number of male students: 8 out of 27 * 9 = 24 number of female students: 27 1 = 28 number of female students

The number of boys in class 6 (2) is 8 / 9 of that of girls. After one girl is transferred, the number of boys is 6 / 7 of that of girls
How many people are there?

Let's assume that the female students are originally X-person
8/9x=6/7*(x+1)
The score of X is 27, that is, there are 27 girls and 24 boys
No, the equation can be solved like this
Eight out of nine minus six out of seven is two out of sixty-three
Six out of seven divided by two out of 63 is 27 for girls and 27 for boys multiplied by eight out of nine is 24
The idea of the arithmetic formula is that the number of boys has not changed, so the original 8 / 9 is divided into two parts, that is, 6 / 7 of the original number of girls and 6 / 7 of the number of girls. The two 6 / 7 add up to 6 / 7 of the number of girls, that is, the number of boys. Therefore, 2 / 63 represents the number of boys represented by 6 / 7 of the number of girls So this is the solution

56 students were divided into several groups to plant trees, 176 saplings were divided into each group, at most, how many groups? How many saplings in each group
most urgent,

Find the greatest common divisor of 56 and 176
So it's eight groups
There are 22 trees in each group