Basic Proportionality Theorem Class 10th  (OR)  B.P.T.   or Thales Theorem   Converse of basic proportionality theorem, thales theorem 10th standard, theorem 6.2 class 10 Statement:-    If a line is drawn parallel to one side of the triangle to intersect the other two sides in two distinct points, the other two sides are divided in the same ratio. Given:-   A  Δ ABC in which line  l  ॥  BC, intersect side AB and AC at point D and E To Prove :-    Construction :-   Draw  EM 丄 AB and DN 丄 AC. Also join BE and CD Proof :-   Area of triangle =   ✕ Base ✕ Height Area of △ ADE =   ✕ AD ✕ EM ..............(1) Area of △ BDE =   ✕ BD ✕ EM ..............(2) Divide equation (1) by equation (2) we get Similarly ΔBED and ΔCDE are two triangles on the same base and lie between the same parallel DE and BC   ∴ Ar(ΔBED) = Ar(ΔCDE)...

E- LESSON PLAN    SUBJECT MATHEMATICS     CLASS 10+2 Lesson Plan Class 12th chapter 3 Matrices Subject Mathematics for Mathematics Teacher. Effective way of Teaching Mathematics. Top planning by the teacher for effective teaching in the class. TEACHER  :   DINESH KUMAR SCHOOL :  RMB DAV CENTENARY PUBLIC SCHOOL NAWANSHAHR SUBJECT   :    MATHEMATICS CLASS                  :    XII  STANDARD BOARD                 :   CBSE LESSON TOPIC / TITLE   :  CHAPTER 3: Matrices ESTIMATED DURATION:  This lesson is divided into seven modules and it is completed in seven class meetings. TOPIC:- Chapter : 3 : Matrices

Maths Riddles, Puzzles and Brain Teasers Mathematics   Riddles,   Puzzles  and  Brain  Teasers  with answers,  Tricky  maths  riddles and number puzzles that challenges your brain power,  challenging  maths  riddles. Riddle No 1 1) If we hit a stone once then it is divided into two pieces. Then what is the number of pieces if we hit the stone for 4 times.                        Riddle No 2 2) Suppose you are given a 30 m cloth and you are asked to cut 1 m everyday from it . In how many days you completely cut the whole piece of cloth.                                              ...

E- LESSON PLAN   SUBJECT MATHEMATICS    CLASS 10+2 Lesson Plan Class 12th Subject Mathematics for Mathematics Teacher. Effective way of Teaching Mathematics. Top planning by the teacher for effective teaching in the class. E-LESSON PLAN MATHEMATICS CLASS-XII CHAPTER-1 RELATIONS & FUNCTIONS NAME OF THE TEACHER DINESH KUMAR CLASS 10+2 CHAPTER 01 SUBJECT MATHEMATICS TOPIC RELATIONS & FUNCTIONS  DURATION : 15 Class Meetings PRE- REQUISITE KNOWLEDGE:- Knowledge of set theory chapter 1 class 10+1 Knowledge of Relations and Functions chapter 2 class 10+1