Perpendicular Lines   Definition: Perpendicular Lines A line intersect another line and the angle between them is a right angle or 900 then the lines are said to be “Perpendicular.” If a line AB perpendicular to CD, we write asAB ⊥ CD. Perpendicular denoted by  “⊥” If one of the angles formed by the intersection of two lines or line segments […]

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Worksheets – Set Theory   8 Different Types of Questions on Sets with Answers. Question (1) Which of the following are sets. (i) The collection of all good books in a library. (ii) The collection of all even numbers less than 10. (iii) The collection of all dishonest people in a village. (iv) The collection of all students in […]

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Converting Fraction into Percentage Converting a fraction into a percentage involves a simple process. Here’s a detailed explanation with examples to help we understand the steps clearly: Steps to Convert a Fraction into a Percentage 1. Understand the fraction: A fraction consists of two numbers, the numerator (top number) and the denominator (bottom number). A […]

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Introduction – Percentage  Definition:  A Percent is a number or ratio expressed as a fraction of 100. In other words, Percent is a fraction of denominator 100. Percent is denoted by the symbol %. ‘Per’ ‘cent’ means out of 100. The percent symbol is written to the right side of the number, like this 15%. Example: 25% (read as twenty five percent)  […]

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Universal Set In this lesson, we will learn what is a universal set and representation of universal set in venn diagrams. Definition: The set that contain all the elements of a given collection, and therefore all sets are subset of the Universal Set is known as the Universal Set. Symbol: Universal Set is represented by symbol “U”. […]

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          Representation of sets There are three methods of representing a set. 1. Statement form method 2. Roster or tabular form method 3. Rule or Set builder form method                       Statement form method In this method well defined description of the […]

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Parallel Intersecting and Perpendicular Lines          Definition: Parallel Lines Two or more lines in a plane that never intersect or touch each other are called “Parallel lines”. The symbol “∥” is used to denote parallel lines. Example- PQ ∥ RS denoted that line PQ parallel to line RS.       Intersecting lines          […]

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