Entire surface area = (2*pi*72)+(14*pi*11) = 791.681 square units to 3 decimal places
The area of each of the circles at the ends is pi times the square of the radius, and the surface area of the tube is the circumference times the height, with the circumference being pi times the diameter. Then add together the three areas (2 times the circle plus the tube). If you forget the equation for the surface area of a tube, imagine cutting the tube along its length (height) and laying it flat. Then what was the circumference of a tube becomes the width of a rectangle.
The surface are of a cylinder whose radius is 10cm and height is 20cm is 1884.96cm2
A cylinder whose radius is 5 and height is 7 has a surface area of 377 units2
This cylinder's height is 6 (5.98) units.
A cylinder whose radius is 2cm and height is 8cm has a total surface area of approximately 125.66cm2 {ADDED} To explain that further, the formula is pi*r^2 X h where r is the radius and h the height.
The surface area of a cylinder is 2*pi*radius*height. In this case it would be 2*pi*5*10 = 314.16
The surface are of a cylinder whose radius is 10cm and height is 20cm is 1884.96cm2
A cylinder whose radius is 6 and height is 14 has a surface area of 754 units2
A cylinder whose radius is 5 and height is 7 has a surface area of 377 units2
The curved surface area of a cylinder whose height is 14 feet and radius is 6 feet is 527.79ft2
This cylinder's height is 6 (5.98) units.
847.8
37.68
A cylinder whose radius is 2cm and height is 8cm has a total surface area of approximately 125.66cm2 {ADDED} To explain that further, the formula is pi*r^2 X h where r is the radius and h the height.
The surface area of a cylinder is 2*pi*radius*height. In this case it would be 2*pi*5*10 = 314.16
Surface area = 673.87 units2
345.6 units2
1,979.2 units2