We can see from the net that there are two rectangles with dimensions 3 cm by 6 cm, two rectangles with dimensions 2 cm by 6 cm and two rectangles with dimensions 2 cm by 3 cm. Surface Area of a Rectangular Prism using NetsĪ rectangular prism or cuboid is formed by folding a net as shown − From the net, we can see that there are six equal faces and so we get the total surface area is 6 × 16 = 96 square units. The units associated with surface area will always be units squared. The area of the rectangle can be calculated by multiplying \(l\times w\), or \(32\times20\), which is 6,400. For example, the rectangle below has a length of 32 meters and a width of 20 meters. This works because every dimension of a cube - width, height, and length - is the same. Using a net to find the surface area of a rectangular prismįinding the areas of each of the rectangles and squares of the net of a rectangular prism and adding up those areas gives the surface area or total surface area of the prism.įor example, if the length of one side of the cube 4 units then the area of one its face is 4 × 4 = 16 square units. A represents area, l represents length, and w represents width. Surface Area Of A Rectangular Box Formula. Nets of rectangular prisms are made up of rectangles and squares. If the lengths of the sides are all the same, then the rectangle is also a square. Figuring out the surface area of a rectangle and a cylinder sim. The net of a solid figure is formed when a solid figure is unfolded along its edges and its faces are laid out in a pattern in two dimensions. How to Figure the Surface Area of a Rectangle
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