![]() For example, the surface area of a cuboid is calculated by taking its length, width, and height. The calculation of surface area involves three dimensions or values. For example, a rectangle's area is calculated by taking its length and width. The calculation of area involves only two dimensions or values. A cube has 6 faces, therefore, the surface area is 6a 2. This is because all the faces of a cube are in the form of a square. Surface area is the area or the space occupied by the lateral surface and the area of all the faces of a three-dimensional shape.Ī few examples of shapes that have an area are square, rectangle, and triangle.Ī few examples of solid shapes that have surface area are cube, cuboid, cone, cylinder.Įxample: Area of a square of side 's' is s × s or s 2.Įxample: Surface Area of a cube with side 'a' is 6a 2. Surface area is associated with a three-dimensional shape.Īrea is the space or the region occupied by any flat two-dimensional shape. AreaĪrea is associated with a two-dimensional shape. The table shown below outlines the important differences between area and surface area. Observe the following figure which shows the areas and surface areas of 2D and 3D shapes. It is to be noted that the curved surface area applies only to shapes that have curved surfaces. The curved surface area is the area of the curved part in a solid shape, whereas, the lateral surface is the difference between the total surface area and the area of the base and top of the shape. ![]() In a three-dimensional shape like a cone, the surface area is given by the sum of the curved surface area and the area of its base, which is a circle. The formula used to calculate the total surface area of a cuboid = 2(lw+wh+lh), where 'l' is the length, 'w' is the width, and 'h' is the height of the cuboid. ![]() Therefore, we can say that the surface area of a cube is the sum of the area covered by all the faces of a cube and it is calculated by the formula: Surface area of a cube = 6a 2. A cube is a shape that has all its faces in the shape of a square. In other words, surface area applies to a polyhedron, where a solid shape has flat faces. Surface area is a term that is associated with three-dimensional figures and shapes. ![]()
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