If you increase the height of a cylinder by 1 cm, its surface area will increase by 50.24 square cm. What is the bottom radius of the cylinder?

The radius of the bottom of the cylinder is 8 cm

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1. The circumference and height of the bottom surface of a cylinder are equal. If the height is shortened by 2 cm, the surface area will be reduced by 12.56 square cm. Find the surface area of the cylinder
2. If the height of a cylinder is increased by 3 cm, the height of the cylinder is equal to the circumference of the bottom surface, and the area is increased by 94.2 square cm. The volume of the original cylinder is calculated
3. If the height of a cylinder with the same circumference as the height of its bottom surface is shortened by 1 cm, its surface will be reduced by 6.28 square cm, and the volume of the cylinder will be calculated
4. If the height of a cylinder is reduced by one centimeter, its side area will be reduced by 6.28 square centimeter
5. If the height of a cylinder increases by 1cm, its surface area will increase by 50.24 square centimeters. What is the bottom area of the cylinder?
6. The height of a cylinder is increased by 4cm, the surface area is increased by 50.24cm2, and the bottom area of the cylinder is calculated
7. Cut a cylinder into two half cylinders with a square section. The volume of each half cylinder is known to be 25.12 cubic centimeter. Calculate the surface area of the half cylinder
8. Cut a cylinder into two halves. The front of the cylinder is a square. The volume of each half cylinder is known to be 25.12 cubic centimeters. How many square centimeters is the surface area of each half cylinder? Please don't use some special symbols. I can't understand them
9. Two identical cylinders are put together to form a large cylinder 10 cm long. The surface area is reduced by 25.12 square centimeters. The original volume of a cylinder is () cubic centimeters A. 31.4B. 62.8C. 94.2
10. A cylinder with a circumference of 25.12 decimeters is cut vertically along the diameter of the bottom surface, and the surface area is increased by 32 square decimeters to calculate the volume of the cylinder There should be a formula
11. If the height of a cylinder increases by 1cm, its side area increases by 50.24cm. What is the radius of the bottom of the cylinder
12. If the height of a cylinder increases by 1cm, its surface area will increase by 50.24 square centimeters. What is the bottom area of the cylinder? Formula
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14. If the height of a cylinder increases by 2 cm, its surface area will increase by 50.24 square cm. If the height decreases by 2 cm, it will be equal to the diameter of the bottom surface, and the volume of the cylinder will increase How many?
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17. A cylinder with a diameter of 8 cm at the bottom is cut into two pieces vertically along the diameter of the bottom. The surface area is increased by 112 square centimeters. What is the volume of the cylinder
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20. A cylinder and a cone have the same circumference and height at the bottom. The volume of the cone is 3.6 cubic decimeters, and the volume of the cylinder is 3.5 cubic meters