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Math

Practical Geometry G8

In the previous chapter, we got introduced to the world of “Quadrilaterals”. Square, rectangle, rhombus are a few examples in this category. What if we tell you that you can construct a quadrilateral on your own? Wondering how? Well, some tools help you construct a quadrilateral. These tools not only help you build the entire …

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Data Handling G8

Have you observed your mark-sheet carefully? In that, you will find all the records of your marks scored in the entire academics arranged in rows and columns. The mark-sheet contains information in the form of a ‘Data’. Many a time, we need to organise the data systematically, to draw meaningful interferences from any data. Wondering …

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Cubes and Cube roots G8

What comes to your mind when you see the number – 1729? Is it just an ordinary number like the rest? Not at all! There is a very intriguing story behind this number. The number is the famously called “Hardy-Ramanujan number”, among mathematicians. It is the smallest number which is a sum of two cubes …

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Comparing Quantities G8

Don’t your eyes roll on and ears hold up straight when you hear the word – Discount? It does, we know! Have you wondered if the shopkeeper is selling the items for a discount, how come he is still making a profit? In this chapter we will study the most important concepts of finance – …

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Algebraic Expressions and Identities G8

We have already learned about algebraic expressions in our previous grades. In this chapter, we will move forward to an advanced learning technique of algebraic expressions. In this lesson, you will encounter several different concepts such as monomial, binomial, and others. Also, you will learn some important algebraic identities that will help you solve the …

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Visualising Solid Shapes G8

We often check the depth of any water body before we jump into it. What does the word ‘Depth’ indicate here? It gives us an idea about the height of any structure or object. This height, or say, depth is a unique feature of the 3-D figures. Some classic examples of 3-D objects are sphere, …

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Mensuration G8

If we ask, what is a volume? Your first answer will be related to that of a sound! Won’t it? You are right, but scientifically, not mathematically. In mathematics, the volume has an altogether different meaning. Volume in maths deals with space and area occupied by a particular item. For example, when you fill a …

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Exponents and Powers G8

Consider a number 45,00,00,000. Don’t you think it’s way too long to write or say? But what if we tell you a simpler way to write this? This number, mathematically, can be written as 4.5*10^8, and we read ‘10^8’ as ‘10 raised to the power 8’. But how does this form of expression come into …

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