For a cylinder, its height increases by 3 decimeters, and its side area increases by 18.84 square centimeters. What is the bottom area of the cylinder

For a cylinder, its height increases by 3 decimeters and its side area increases by 18.84 square centimeters
2πrl=18.84
2x3.14xrx30=18.84
r=0.1
S base = π R ^ 2 = 3.14x0.1x0.1 = 0.0314 square centimeter

RELATED INFORMATIONS

1. The surface area formula of primary cylinder (including derivation formula) is expressed in words
2. What is the suggested English expression?
3. Volume formula and surface area formula of cylinder and cone!
4. In the process of deriving the cylinder formula, the surface area of the rectangle is 20 cm larger than that of the cylinder. What is the side area of the cylinder?
5. Calculation formula of cylinder surface area + Example
6. What is the formula for calculating the surface area and volume of a cylinder?
7. How to find the surface area of a cylinder,
8. What is the surface area formula for a cylinder? How many
9. Who knows the formula for calculating the volume of a cylinder?
10. The volume formula of the cylinder,
11. For a cylinder, if its height increases by 3 cm, the side area will increase by 18.84 square cm. What is the bottom area of the aid?
12. If the height of a cylinder is increased by 3 cm, the side area will be increased by 18.84 square cm. What is the bottom area of the cylinder______ ．
13. A cylinder, bottom diameter 18 cm, height 15 cm, surface area~
14. The bottom surfaces of the two cylinders are equal, and the second cylinder is 3cm higher than the first cylinder, so the surface area of the second cylinder is 18.84cm larger than the first cylinder Square centimeter, what are the radii of the two cylinders A cylinder with a height of 9 decimeters is cut longitudinally into two parts along the diameter of the bottom surface. The surface area of the cylinder is increased by 72 square decimeters. The original surface area of the cylinder is () and how many square centimeters is the bottom area of each cylinder now
15. Calculate the surface area of the cylinder below. 1. The radius of the bottom is 5cm, and the height is 15cm,
16. If the radius of the bottom of a cylinder is increased by 4 cm, the side area will be increased by 75.36 square cm. The ratio of the side area to the original is 5:3
17. 1. The bottom radius of a cylinder is 2 cm, the height is 10 cm, and its side area is () square cm 1. The bottom radius of a cylinder is 2 cm, the height is 10 cm, and its side area is () square cm 2. Cut a cylinder with a base area of 6.28 square centimeter into two cylinders of the same size, and increase the surface area () 3. If the side area of a cylinder is 240 square centimeters and the height is 5 centimeters, then the circumference of the bottom surface of the cylinder is () 4. The volume of a cylinder is 15 cubic decimeters, and that of a cone is () 5. If a cone has a base area of 24 square decimeters and a height of 30 centimeters, then the volume of the cone is () 6. The side area of a cylinder is 125.6 square centimeters, the height is 8 centimeters, the circumference of the bottom surface is () centimeters, the radius of the bottom surface is () centimeters, the bottom area is (), and the surface area is () 7. The surface area of a cylinder is 153 square meters, the side area is 78 square meters, and the area of a bottom surface is ()
18. Make a cylinder, the side area is 9.42 square centimeters, the height is 3 centimeters, its bottom radius is______ Cm, the surface area is______ Square centimeter
19. When the height of a cylinder is constant, its volume is proportional to the radius of its bottom______ ．
20. The side area of a cylinder is 37.68 square centimeters, and the radius of its bottom is 3 centimeters. How many centimeters is its height?