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Triangles are everywhere around us – from the roof of your house to the slice of pizza you eat. They might look simple with just three sides and three angles, but triangles have some really imp properties that make them special in mathematics. Triangle Basics A triangle is the most basic closed shape we can

Fractions are everywhere in our daily life – from dividing a pizza among friends to measuring ingredients for cooking. In Class 7, we study how to multiply and divide fractions, which are imp skills that help us solve many real-world problems. These notes will teach you step-by-step methods to work with fractions easily, along with

Numbers are not just symbols on paper – they can actually tell us imp information about real situations. Let’s study how numbers work in different arrangements and what they reveal. Height Arrangement Rule When children stand in a line, we can create a special number sequence using this simple rule: For example, if 7 children

Lines are everywhere around us – from the edges of our notebooks to railway tracks we see daily. In this chapter, we will study different types of lines like intersecting lines, parallel lines, and perpendicular lines along with their special properties and angle relationships. Across the Line Lines on a plane surface can have different

In this chapter, we study how to use letters like a, b, c to represent unknown numbers and create mathematical expressions with them. This topic forms the foundation for higher-level algebra and helps students understand patterns, relationships, and problem-solving in a much easier way. The Notion of Letter-Numbers Introduction to Letter-Numbers Letter-numbers are basically letters

In our daily life, we often need to measure things more precisely than just using whole numbers. When a carpenter needs to cut wood exactly or when we buy 1.5 kg of vegetables, we use parts of units. This chapter will help you understand how to work with these fractional parts using decimals, which makes

Mathematics can be really fun when you understand how numbers work together. Today we will study arithmetic expressions – which are basically mathematical sentences that tell us how to combine numbers. 2.1 Simple Expressions Definition and Value Arithmetic expressions are like mathematical phrases that we see everywhere. Think of expressions like 13 + 2, 20

Large numbers like lakh and crore are very common in our daily life in India. You must have heard people talking about one lakh rice varieties or population of cities in lakhs and crores. But what does one lakh actually mean? How big is this number really? A farmer once heard that there were one