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Dictionary Rank of a Word | Permutations & Combinations

 PERMUTATIONS & COMBINATIONS Rank of the word or Dictionary order of the English words like COMPUTER, COLLEGE, SUCCESS, SOCCER, RAIN, FATHER, etc. Dictionary Rank of a Word Method of finding the Rank (Dictionary Order) of the word  “R A I N” Given word: R A I N Total letters = 4 Letters in alphabetical order: A, I, N, R No. of words formed starting with A = 3! = 6 No. of words formed starting with I = 3! = 6 No. of words formed starting with N = 3! = 6 After N there is R which is required R ----- Required A ---- Required I ---- Required N ---- Required RAIN ----- 1 word   RANK OF THE WORD “R A I N” A….. = 3! = 6 I……. = 3! = 6 N….. = 3! = 6 R…A…I…N = 1 word 6 6 6 1 TOTAL 19 Rank of “R A I N” is 19 Method of finding the Rank (Dictionary Order) of the word  “F A T H E R” Given word is :  "F A T H E R" In alphabetical order: A, E, F, H, R, T Words beginni

Triangle Properties And Types Geometry

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TRIANGLES ITS PROPERTIES AND TYPES Triangle:- A polygon with three sides is called a triangle. Triangle is a closed figure which have three sides, three angles and three vertices. Classification of triangles on the bases of sides These are of three types:- Scalene Triangle Isosceles Triangle Equilateral triangle Scalene Triangle:-   A triangle whose all sides are different is called a scalene triangle. Isosceles Triangle:- A triangle whose two sides are equal is called isosceles triangle. Equilateral Triangle:- A triangle whose all sides are equal is called an equilateral triangle. Classification of triangles on the basis of angles. These are of three types:- Acute angled Triangle Right angled Triangle Obtuse angled Triangle   Acute angled triangle:- A triangle whose all angles are acute is called acute angled triangle. Right angled Triangle:- A triangle whose one angle equal

Class XII Maths Formulas | Basics | Assignments | SP

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Chapter-wise Basics and Formulas CBSE syllabus, sample papers, unit tests and solutions of sample papers, CBSE syllabus for class XII for all subjects, chapter-wise basic concepts of mathematics for class XII, chapter-wise planning in mathematics for class XII. Mathematics MCQ Class XII  Click Here Maths Practical (Class XI) For 2021-22 Click Here Maths Practical (Class XII) For 2021-22 Click Here Sample Question Papers Term-1 (2021-22) Click Here   Maths Project Work For Class XII Click Here ******************************************* TEACHERS NOTES SUBJECT: MATHEMATICS CLASS XII CLASS 12 (Non- Medical and Applied Mathematics) Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Applied   Maths *************************************** NCERT Mathematics

Lesson Plan Math Class X (Ch-10) | Tangent To a Circle

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E- LESSON PLAN    SUBJECT MATHEMATICS     CLASS 10 lesson plan for maths class X chapter 10 circle, lesson plans for mathematics teachers,  Method to write lesson plan for maths class 10, lesson plan for maths class X, lesson plan for mathematics grade X, lesson plan for maths teacher in B.Ed. Board – CBSE CLASS –X SUBJECT- MATHEMATICS CHAPTER 10  :-  Circle TOPIC:-   Chapter 10 : Circle DURATION:-    This topic is divided into Eight modules and are completed in ten class meetings. PRE- REQUISITE KNOWLEDGE:- Knowledge Properties of circle class 9 th Knowledge of Pythagoras theorem. TEACHING AIDS:-   Green Board, Chalk,   Duster, Charts   etc. METHODOLOGY:-   Demonstration and Lecture method OBJECTIVES:- Definition of circle and the terms related to the circle like centre, radius, diameter, chord, segment and sector of the circle. Tangent to the circle at the point of contact, secant of the c

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