How do you calculate the area of a circle? How do you calculate the volume of a cylindrical shape?

Circle: s = r squared.

Cylinder: v= r square h

The area of the circle = the square of r.

The volume of the cylindrical shape = the base area of the height or v = sh

Area of the circle: r squared.

The volume of a cylindrical shape: r square h

Side area plus two base areas.

The area of the cylinder is the surface area, which is calculated as follows:

1. Obtain the radius of the bottom surface of the cylinder. The two bottom faces of a cylinder have the same size and area, so either bottom surface can be used. In this example, Mori instructed that the radius of the bottom surface is 3 cm, and write it down to the base.

If you only know the diameter, then divide it by 2. If you only know the girth, then divide it by 2 and you're good to go.

2. Calculate the area of the bottom surface. To calculate the area of the base, simply substitute the radius of 3cm into the formula for calculating the area of a circle: a = r2. Here's how it's calculated:

a = r2

a = x 32

a = x 9 = cm2

3. Multiply the calculation by 2 to get the surface area of the top and bottom circles. Just multiply cm2 by 2 to get the area of the two bottom surfaces. x 2 = cm2。This is the surface area of the two bottom surfaces.

4. Calculate the circumference of one of the bottom circles. To calculate the area of the sides, you will need to know the circumference of the base circle. Calculating the perimeter of the base only requires multiplying the radius by 2. Therefore, the girth can be obtained by multiplying 3cm by 2. 3 cm x 2π = cm

5. Multiply the circumference of the bottom circle by the height of the cylinder. This way you will get the area of the side. Multiply the circumference cm by the height cm x 5 cm = cm2

6. Add up the area of the bottom surface and the area of the side. Once you add up the area of the two undersides and the area of the sides, you get the surface area of the cylinder. All you need to do is add up the area cm2 of the two undersides and cm2 of the sides.

cm2+ cm2= cm2。Then the surface area of a cylinder with a base radius of 3 cm and a height of 5 cm is cm2.

The surface area of the cylinder is equal to the side area plus the base area multiplied by 2. The side area of the cylinder is equal to the circumference of the base surface multiplied by the height. The conceptual properties of cylindrical mold failure are as follows:

1. The two round surfaces of the cylinder are called the bottom surface, and the surrounding surface is called the side, and a cylinder is composed of two bottom surfaces and one side surface.

2. The two bottom surfaces of the cylinder are exactly the same two circular surfaces. The distance between the two bottom faces is the height of the cylinder.

3. The side of the cylinder is a curved surface, and the figure of the side of the cylinder is a rectangle, square or parallelogram.

4. The volume of the cylinder is equal to the floor area and the height of the land multiplication.

5. The volume of a cylinder of equal bottom and height is 3 times that of a cone.

6. The cylinder can be surrounded by a parallelogram.

7. The surface area of the cylinder is equal to the side area plus the bottom area multiplied by 2.

8. The shaft section of the cylinder is a rectangle with a diameter multiplied by a height, and the cross-section is the same circle as the bottom surface.

The area of the cylinder = side area + two bottom areas (S surface = S side + 2S bottom);

The side area of the cylinder = the circumference of the bottom surface is gently high, the S side = CH (C represents the perimeter of the bottom surface, H represents the high grandson of the cylinder), S side =

Base area of the cylinder =

The bottom surface of the cylinder is circle), s bottom =

The formula is as follows: S-side =

Height: H, Bottom Radius: R, Bottom Diameter: D, Side Area: S, Total Surface Area: T

Cylinder side area = bottom circumference height (base perimeter knows, the circumference of the circle (2 r) or (d)).

The surface area of the cylinder = 2 base areas + 1 side area (the base area knows, the area of the circle (r r) or (d 2) (d 2) (don't forget to ask for 2, because there are 2 base areas!) ））

The volume of the cylinder = the base area height (sh) (this should be understood!) )

The area of the two circles on the bottom + the area of the column.

Column Area == Circumference of the base circle x height of the column.

A cylindrical shape is equivalent to a rectangle, with the length of the column being the height and the width being the circumference of the base circle.

The surface area of the cylinder is s=2 r 2+2 rh=2 r(r+h).

where: r--- base radius; h--- 髙.

Then the base area of the cylinder is s bottom = r

The side area is S side = 2 rh

The surface area is s = S bottom + S side = r + 2 rh = r (r + 2h).Knowledge development1. The volume of the cylinder is v= r h=s bottom h

2. The cylinder is composed of two bottom surfaces and one side. There is a fixed line and a moving line in the same plane, when this plane rotates around this fixed line, the surface formed by this moving line is called the rotating surface, this fixed line is called the axis of the rotating surface, and this moving line is called the bus bar of the rotating surface.

Cylindrical surface area = side area + 2 base area.

Side area = base perimeter height.

Base Area = Pi Radius of the Base

Cylindrical surface area = 2 pi base radius (base radius + height).Extended Resources:There is a fixed line and a moving line in the same plane, when this plane rotates around this fixed line, the surface formed by this moving line is called the rotating surface, this fixed line is called the axis of the rotating surface, and this moving line is called the bus bar of the rotating surface. If the bus is a straight line parallel to the axis, then the resulting rotating surface is called a cylindrical surface.

If the cylindrical surface is truncated by two planes perpendicular to the axis, then the geometry enclosed by the two sections and the cylindrical surface is called a straight cylinder, referred to as a cylinder.

Area is a measure of how much of the surface of a plane. The measurement of the surface of a three-dimensional object is generally called the surface area.

How do you square a cylinder? The answer is: there are two base areas, and one side area, and the base area is squared by the radius.

The side area of the circumference of the circle is high.

I've got the answer for you, I hope my 1, I hope my answer is helpful to you! If you still have time, please give me a thumbs up! Thank you! Good luck with your studies! Good luck!

The area of the cylinder = side area + two bottom areas (S surface = S side + 2S bottom);

The formula is as follows: Height: H, Bottom Radius: R, Bottom Diameter: D, Side Area: S, Total Surface Area: T

The formula for calculating the area of the cylinder is: 2 * radius * radius + 2 * radius * high cylinder side area = bottom perimeter height.

The surface area of the cylinder = 2 base areas + 1 side area.

The volume of the cylinder = the base area is high.

The base area of the cylinder = the area of the circle.

The area at the bottom of the conic = the area of the circle (r r) or ( d 2) (d 2) volume = 1 3 The volume of the cylinder of equal height with its bottom = 1 3 The area of the bottom of the cone = 1 3sh Extended information:

"(pài) is an infinite non-cyclic decimal = to keep 2 decimal places, take.

r" is the radius of the circle, "d" is the diameter of the circle, in the same circle or equal circle, r is 1 2 of d, d is 2 times r, "s" is the area, and "h" is the height. The sum of the areas of all the faces of an object is called its surface area. The amount of space occupied by an object is called the volume of the object.

The volume of a cone is equal to the volume of a cylinder of equal height to its base 1 3, and the volume of a cylinder is equal to the volume of a cone of equal height to its base and height is equal to 3 times the volume of a cone.

What is the area formula for a cylinder.

The bottom area is 2, the side area is 2 r*h, the surface area = the side area + 2 bottom areas.

Extended Content:1The formula for calculating the base area of a cylinder.

s r 2, (s is the base area of the cylinder, r is the radius of the bottom surface of the cylinder. )

2.The formula for calculating the perimeter and base area of the bottom surface of the cylinder.

The radius of the cylinder is r, the height is h, and the side area of the cylinder is 2* *r*h. The base area of the cylinder: *r*r (there are two bottom faces), so the area of the cylinder is 2* *r*h+2 *r*r.

3.The formula for calculating the area of a circle is s = radius * radius. Area of the cylinder = 2 * radius * height + 2 * radius * radius. The volume of the cylinder = radius * radius * height.

4.Conic area formula.

The formula for the side area of the cone is: 1 2 The circumference of the bottom surface of the conical busbar (L) (s=2 pier), and the formula for the side area of the cylinder is: the circumference of the bottom surface (s=2 pier) and the height (h).

Area formula.

Side area The side area of the cylinder = the circumference of the bottom surface x the height = ch

Surface area: surface area of the cylinder = side area + bottom area x 2

s=2πr^2+ch

Volume formula: the volume of the cylinder = base area x height v = rh v = sh in the same plane there is a fixed line and a moving line, when this plane rotates around this fixed line, the surface formed by this moving line is called the rotating surface, this fixed line is called the axis of the rotating surface, and this moving line is called the bus of the rotating surface. If the cylindrical surface is cut by two planes perpendicular to the axis, then the geometry enclosed by the two sections and the cylindrical plane is called a straight cylinder, referred to as a cylinder.

The area of the cylinder = the side area of the cylinder + 2 times the bottom area of the cylinder.

The side area of the cylinder = the circumference of the base surface multiplied by the height = multiplied by the diameter multiplied by the height.

So the area of the cylinder = multiplied by the diameter multiplied by the height + 2 times multiplied by the square of the radius.

The surface area of the cylinder = side area + two base areas.

The side area of the cylinder = the perimeter height of the bottom surface. The base area of the cylinder = r*r.

The formula for the side area of the cylinder: side area = height of the circumference of the bottom surface.

The formula for the surface area of a cylinder: surface area = 2 r2 + bottom perimeter The volume formula for a tall cylinder: volume = volume = base area high.

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

The volume of the cone = the base area is 3 high

A circular cylinder is a geometry formed by taking the line where one side of a rectangle is located as the axis of rotation, and the other three sides rotate around the axis of rotation. It has 2 circular bottoms of the same size, parallel to each other, and 1 curved side. Its sides are rectangular.

Cylinder surface area.

2 base areas and 10 side areas.

2 r 2 ten dh

where r is the radius of the base circle.

d is the diameter of the bottom circle.

h is the height of the cylinder.

The surface area of the cylinder is the area at both ends and the side area is 2 r 2 rh 2 r(r h).

where: r cylindrical end face radius; h Back column height.