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Mensuration 3D

49 posts

Last Updated: 21 February 2026

3D shapes are solid figures that have three dimensions — length, width, and height. Unlike flat 2D shapes, they have depth and occupy space. Because they take up space, th...read more

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School Learning

Introduction to Mensuration | Formulas for 2D and 3D Shapes, Examples

Last Updated: 23 July 2025

Mensuration is the branch of mathematics that deals with the measurement of various geometric figures and shapes. This includes calculating areas, volumes, and perimeters ...read more

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School Learning

How to Find Total Surface Area of a Cylinder

Last Updated: 23 July 2025

To find the total surface area of a cylinder i.e., TSA we use the formula TSA of cylinder = 2πr (h + r). In this article we will explore how to find the total surface area...read more

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School Learning

Surface Area of a Combination of Solids

Last Updated: 27 February 2026

Surface area is the total area occupied by the surface of a three-dimensional object. It is the sum of the areas of all the surfaces of the object.There are two main types...read more

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School Learning

Practice Problem on Surface Area and Volume of a Cube

Last Updated: 23 July 2025

In this article, we are going to study about an important chapter of school mathematics. This article will explain concepts related to cubes and have solved questions and ...read more

School Learning

Practice Questions

Volume : Definition, Formula, Examples

Last Updated: 28 January 2026

Volume of the shape means the capacity of the shape in three-dimensional space. The unit of volume is cubic units. For example, cubic meter. There are different formulas t...read more

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School Learning

Measuring Volume of Solids

Last Updated: 22 April 2026

Volume is the amount of space occupied by a three-dimensional (3D) object. It is calculated using formulas based on the shape and its dimensions. Below are the formulas fo...read more

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School Learning

Diagonal of Cuboid

Last Updated: 23 July 2025

Diagonal of a Cuboid is a line segment that joins two opposite vertices of the cuboid. It can pass through either the body or the face of the diagonal of the cuboid. Cuboi...read more

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School Learning

Length Width Height

Last Updated: 19 February 2026

Length, width, and height are the three main dimensions of a shape. Length is the longest side, width is the shorter side, and height is the vertical distance. In two-dime...read more

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School Learning

Octagonal Prism

Last Updated: 23 July 2025

Octagonal Prism is a 3D shape with two octagon-shaped ends connected by eight rectangular sides. Thus an octagonal has 10 faces out of which 8 are rectangular and 2 are oc...read more

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School Learning

Prism: Shape, Examples, Types, and Surface Area

Last Updated: 23 July 2025

A prism is a three-dimensional shape with two identical, parallel polygonal bases and rectangular lateral faces connecting the corresponding sides of the bases. Prisms are...read more

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School Learning

Parallelepiped - Definition and Formulas

Last Updated: 23 July 2025

Parallelepiped is a three-dimensional structure whose each face is a parallelogram. A parallelepiped has 6 parallelogram faces, 8 vertices, and 12 edges. The structure of ...read more

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Hemisphere in Math

Last Updated: 06 February 2026

A hemisphere is a three-dimensional shape that is exactly half of a sphere. It is formed when a sphere is cut into two equal parts through its center. A hemisphere has one...read more

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Cuboid - Shape and Properties

Last Updated: 23 July 2025

A cuboid is a three-dimensional shape that resembles a rectangular box, with 6 faces, 12 edges, and 8 vertices. It is also known as a rectangular prism, characterized by s...read more

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School Learning

Sphere: Definition, Formulas, Examples, Shapes, Properties

Last Updated: 23 July 2025

A sphere is a three-dimensional object that is perfectly round and symmetrical. It is defined as the set of all points in 3D space that are equidistant from a fixed point ...read more

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