0
What is the surface area of a cone with 21 cm radius and 28 slanted height?
Wiki User
∙ 10y ago
Curved surface area: pi*21*28 = 1847.256 square cm rounded to three decimal places
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What is the surface area of a cylinder with a radius of 3.8cm and a height of 11cm?
The surface area of a cylinder with a radius of 3.8cm and a height of 11cm is 353.37cm2
What is the surface area of a cylinder with a radius of 6ft and a height of 7ft?
The surface area of a cylinder with a radius of 6ft and a height of 7ft is 490.09ft2
What is the formula for the surface area of a cone?
Area = πSr + πr² Where: S = the slant length of the cone r = radius of the base πr² = area of the base of the cone πSr = area of outside of cone -------------------------------------------------------------- The surface area of the cone is the sum of the area of the base and the slanted surface. The area of the base is the area of a circle = πr² The area of the slanted surface can be calculated by realising that if the slanted surface is cut by a straight line from the apex to the base it can be "unrolled" into a sector of a circle. Thus it is a fraction of the area of a circle. The length of the circumference of the sector is the length of the circumference of the base of the cone; the length of the whole circle from which this is a sector is the circle with radius of the slant height of the cone; thus: area slanted surface = πS² × ((2πr)/(2πS)) = πSr Thus the surface area of a cone = area base + area slant surface → surface_area_cone = πr² + πSr = πr(r + S) where r is the radius of the base and S is the slant height.
What is the surface area of a cylinder whose radius is 6 and height is 14?
A cylinder whose radius is 6 and height is 14 has a surface area of 754 units2
What the surface area of a cylinder with a 1.5m radius and a height of 4m?
The surface area is 51.84m2
What is the surface area of a cylinder with a radius of 3.8cm and a height of 11cm?
The surface area of a cylinder with a radius of 3.8cm and a height of 11cm is 353.37cm2
What is the surface area of a cylinder with a radius 2m and 9m height?
The surface area of a cylinder with a radius 2m and 9m height is 138.23m2
What is the height of a cylinder with the radius of 7 and surface area of 550?
The height of a cylinder with the radius of 7 and surface area of 550 is 5.51
What is the surface area of a cylinder with a radius of 6ft and a height of 7ft?
The surface area of a cylinder with a radius of 6ft and a height of 7ft is 490.09ft2
What is the height of a cylinder with a radius of 8 and a surface area of 954.56?
The height of a cylinder with a radius of 8 and a surface area of 954.56 is 10.99
What is the surface area of a cylinder with a radius of 15in and a height of 34in?
The surface area of a cylinder with a radius of 15in and a height of 34in is 4,618.14in2
What is the formula of finding the height of a cone?
It depends on what information you have: its radius and slant height, radius and volume, radius and surface area, surface area and volume, etc.
What is the surface area of an cylinder with the radius of 2 and height of 3?
The surface area of a cylinder with the radius of 2 and height of 3 is 62.83 units2
What is the surface area of a cylinder with a radius of 11 and height of 11?
The surface area of a cylinder with a radius of 11 and height of 11 is 1,520.53 units2
What is the surface area of a cylinder with the height of 24 and the radius of 8?
The surface area of a cylinder with the height of 24 and the radius of 8 is 1,608.5 units2
What is the surface area of a cylinder with a radius of 6.3 and a height of 3.7?
The surface area of a cylinder with a radius of 6.3 and a height of 3.7 is 395.84 units2
What is the surface area of a cone with a radius of 2 and a height of 8.25?
A cone with a radius of 2 and a height of 8.25 has a surface area of 65.9 units2
