The area of a circle is 3.141... multiplied by the radius squared.
surface area prism = 2 × area end + total area side = 2 × area end + perimeter end × length of prism The information given to you will allow you to work out the area of one pentagonal end, and the perimeter of the pentagonal end.
1. Find the surface area of the whole cylinder 2. Find the area of one of the two circles on either end of the cylinder 3. Multiply the circle's area by two and subtract their area from the total surface area 4. Now you have the surface area of an unclosed cylinder!
Open the drivers door & look at the end of the dashboard,there will be a semi cicular panel.....remove this and Hey Presto
area of dish end
It is the surface area of the two ends plus the surface area of the curved surface. Surface area of each end is pir2 Surface area of the curved surface is 2pirh Total surface area = 2pir2 + 2pirh
Total surface area including the end caps = (2*pi*r2)+(2*pi*r*h) Surface area = 170*pi square feet
Total surface area including the two end pieces = (2*pi*radius2)+(2*pi*radius*height) in square units.
Unless the context suggests otherwise, the two are the same. However, you may, for example, be required to find the curved surface area of a cylinder and [then] the total surface area. In that case the total surface area would include the areas of the two end faces.
Total surface area including the two end pieces: (2*pi*radius2) + (pi*diameter*height) Area = 240*pi square inches
Surface area of a cylinder = (pi) x (diameter of the circular end) x (length)
Hexagonal prisms cannot be regular. If you tried to make one it would end up being a hexagon since six equilateral triangles make a hexagon. Therefore, there is no surface area.
Total surface area of a cylinder including the two end caps: (2*pi*r*h)+(2*pi*r2) in square units