How to Find the Surface Area of Cuboid?
The surface area of a cuboid is the total area of all the sides/surfaces of the cuboid. In order to understand how to find the surface area of a cuboid, let’s take a look at the given steps:
Step 1: Observe and note down the dimensions of each size. In case the dimensions have different units, convert them into one unit.
Step 2: Use the formula for the total surface area of the cuboid: that is, TSA = 2 (lb + bh + lh) square units
Step 3: Note down the area contained in proper units.
Let’s consider an example to determine the surface area of the cuboid using its formula.
Example: Calculate the total surface area of a cuboid if its length, breadth, and height are 8 cm, 3 cm, and 5 cm, respectively.
Solution:
Step 1: Note down the dimensions of the given sphere. Here, the length, breadth, and height are 8 cm, 3 cm, and 5 cm.
Step 2: We know that the total surface area of a cuboid = 2 (lb + bh + lh). So, substitute the value of the given dimensions in the equation = 2 [(8 × 3) + (3 × 5) + (8 × 5)] = 158 sq. cm.
Step 3: Hence, the total surface area of a cuboid is 158 sq. cm.
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Surface Area of Cuboid
The surface area of a cuboid is the total space occupied by all its surfaces/sides. In geometry, a three-dimensional shape having six rectangular faces is called a cuboid. A cuboid is also known as a regular hexahedron and has six rectangular faces, eight vertices, and twelve edges with congruent, opposite faces. It is a three-dimensional form of a rectangle with four lateral faces and two faces at the top and bottom. Some examples of cuboids that we regularly see are bricks, geometric boxes, shoe boxes, packaging boxes, etc. Let’s learn in detail about the surface area of a cuboid, along with examples.
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