• Total surface area of a cuboid = 2[lb + bh + lh] • Total surface area of a cube = 6(side) 2 • Lateral surface area of a cuboid = Area of walls of a room = 2(l + b) × h • Lateral surface area of a cube = 4a 2 • Curved surface area of cylinder = 2Ï€rh • Total surface area of a cylinder = 2Ï€r(r + h) • Curved surface area of a cone = Ï€rl • Total surface area of a cone = Ï€r(r + l) • Surface area of a sphere = 4Ï€r 2 • Curved surface area of a hemisphere = 2Ï€r 2 • Total surface area of a hemisphere = 3Ï€r 2 • Volume of a'cuboid = l × b × h • Volume of a cube = (side) 3 • Volume of a cylinder = Ï€r 2 rh
Top 5 most expensive TVs The television industry has come a long way in the past few decades with the technology evolving faster than ever. Though, all the companies are working hard to make their televisions as feature packed and affordable as possible for all of us. There exists a small niche for premium TV sets with uber-expensive price tags meant for those customers who demand for nothing but the best. From mind boggling sizes to gold plating to being studded with precious stones here are the 5 most expensive TV sets which have them all. 5. Bang & Olufsen's BeoVision 4 - $111,000 We start off with one truly gigantic Television Set which is big enough to cover a fairly big wall. Measuring at 103 inches, the BeoVision 4 by Bang & Olufsen is the kind of TV plutocrats will want to adorn their personal AV rooms with. The sheer size and the beautifully crafted design of the BeoVision $ Plasma TV is what makes it stand out from th...