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How do you find the suface area of a cylinder?
(h is the height of the cylinder, r is the radius of the top)Surface Area = Areas of top and bottom +Area of the sideSurface Area = 2(Area of top) + (perimeter of top)* heightSurface Area = 2(pi r 2) + (2 pi r)* hcredit to:http://www.math.com/tables/geometry/surfareas.htm#cylinder
Area of rhombus if area and perimeter is given and if you have to find altitude?
Perimeter = 4*Side so that Side = Perimeter/4 Area of a rhombus = Side * Altitude so Altitude = Area/Side = Area/(Perimeter/4) = 4*Area/Perimeter
How do you find the area of a cylinder if the radius is 5 and a height of 9?
It depends whether you want lateral or surface area. Lateral area is only the area of everything except the two bases. Surface area is the total area. Lateral area formula: pH or perimeter(of base) x height In this case, since this is a cylinder, the perimeter will be pi(diameter). Surface area: pH + 2B B= area of base So the equation would be: 10pi(9) + 2(pi x 5 squared)
Is 56cm a perimeter or area?
It must be a perimeter. An area measurement would a square measurement like 56cm². ■
What is the perimeter for a polygon that's area is 20sq. units?
Even if you knew how many sides the polygon has, you stillcould not calculate its perimeter with that much information.Examples:-- An equilateral triangle with area of 20 has perimeter of 20.3885 .-- A square with area of 20 has perimeter of 17.889(rounded).-- A rectangle with area of 20 can have any perimeter more than 17.889 .4 by 5 . . . . area = 20, perimeter = 182 by 10 . . . area = 20, perimeter = 241 by 20 . . . area = 20, perimeter = 42..etc.
