It depends on the shape for which you want the area. The area of both cones and cylinders are completely defined by height and radius.
use algebra to find the radius, then plug the height and radius into the surface area equation
Total surface area including the two end pieces = (2*pi*radius2)+(2*pi*radius*height) in square units.
Total surface area = (2*pi*r2)+(2*pi*r*height) Surface area = 69.11503838 or 69 square units
Total Surface Area of Cylinder = 2 x pi x radius x (radius + height)Surface area of base circle = pi x radius x radiusSurface area of curved part = 2 x pi x radius x heightHence, total surface area = (2 x area of base circle) + (area of curved part)= (2 x pi x radius x radius) + (2 x pi x radius x height)= 2 x pi x radius x (radius + height)
h = ( Area/ (2pi*r) ) - r h = height r = radius pi = 3.14
With the area of the base known, you can back figure to the radius. But unless you know the cylinder's volume, or are told that it's height is equal to the radius or diameter or circumference of the base, there's no way to find the height short of measuring it. To find the radius, you take the area of the base and divide it by pi. The resulting dividend is r2. Find the square root of the dividend, and you have the radius.
The radius is half of the diameter, so just divide the diameter by two, and area is width x height.
Uisng the lateral area and tha radius, you should be able to find the height of the cone. Using the height and radius as the legs of a right triangle, use the Pythagorean Theorem. The hypotenuse is the slant height.
Find the radius by dividing the circumference by 2pi then find the area of the base and multiply it by the height
The area A is equal to 2πrh, where r is the radius and h is the height.
3
2*pi*r2 + 2*pi*r*h where r is the radius and h is the height.