Question

what is formula of lateral surface area of cuboid​

Answer 1

Answer:

2(l+b) ×h

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Answer 2

There are a couple of things we need to understand before we define the lateral surface area of an object. Let's start by defining what the surface area of an object is. The surface area of a three-dimensional object is exactly what it sounds like. It refers to how much area the surfaces of the object take up all together. For example, consider a cube. A cube is made of six square sides, also called faces. The surface area of a cube would be the area of each of these six sides added together, or 6 times the area of one of the sides. Let's look at a six-sided die. The six-sided die pictured here has a side length of 19mm.

Six-Sided Die

Since the side length is 19mm, each side has an area of 19 * 19 = 361 square millimeters. The surface area is all of the six sides added together, so the surface area of a six-sided die with side length 19mm is 361 * 6 = 2,166 square millimeters.

Base of a Three-Dimensional Object

The next thing we want to take a moment to discuss is the base of a three-dimensional object. The base of a three-dimensional object is the bottom side (or face) of the object. When there is a top and a bottom face, both of these are considered to be bases. For instance, our cube has a top and a bottom face. Both of these would be considered to be bases of the cube.

Bases of a Cube

To understand this further, let's look at some additional three-dimensional shapes and decide how many bases they have.

Step-by-step explanation:

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