Mathematics Lab Manual Class X   lab activities for class 10 with complete observation Tables strictly according to the CBSE syllabus also very useful & helpful for the students and teachers.

Common Errors Committed  by the  Students  in Secondary Mathematics   Errors  that students often make in doing secondary mathematics  during their practice and during the examinations  and their remedial measures are well explained here stp by step.  Some Common Errors in Mathematics

  MIND MAP ACTIVITIES  FOR THE STUDENTS OF CLASS X To remember and understand the mathematical concepts easily Mind Maps are very useful. Mind maps is a fast way to revise the concepts, so these are also be called the concept maps

Coordinate Geometry Class X Chapter 7 Basic formulas and complete explanation of coordinate geometry  of 10th standard. It includes distance formula, section formula, mid-point formula, area of triangle area of quadrilateral and centroid of triangle Introduction   It is that branch of mathematics in which we solve the geometrical problems algebraically. In coordinate geometry we combine geometry and algebra. To locate a point in the plane we use a system of two lines which are perpendicular to each other. This system is called the cartesian coordinate system    Cartesian coordinate system   In this system there are two lines which intersect each other at a point perpendicularly. Point of intersection of two lines is called Origin. Horizontal line is called x-axis and Vertical line is called y-axis. Numbers are written on both the axis on either side of the origin. On x-axis positive numbers are written on the right side o...

Pair of Linear Equations in Two Variables Basic points and complete explanations of all methods of solving pair of linear equations in two variables, for class X, chapter 3 Mathematics.  Maths Assignment on Chapter 3 Class X  General pair of linear equations in two variables ax 1  + by 1  + c 1  = 0  ….. (i) ax 2  + by 2  + c 2  = 0   ….. (ii)  There are four methods of solving pair of linear equations in two variables 1) Graphical Method : In this method the point of intersection of two lines on the graph is the solution of two equations. 2) Substitution Method 3) Elimination Method 4) Cross Multiplication Method (Deleted) Types of graphs, nature of solutions, consistency/ inconsistency all are discussed in the following table. Conditions Nature of Solution Type of Graph Consistent /Inconsistent          Unique Solutio...

Theorem 6.6 class 10 mathematics, theorem based on the ratio of area of two similar triangles, theorem based on the relationship between ratio of areas and the corresponding sides. Statement :  The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides. Given :-   \[\Delta ABC\sim \Delta PQR\] To Prove :- \[\frac{Ar(\Delta ABC)}{Ar(\Delta PQR)}=\left ( \frac{AB}{PQ} \right )^{2}=\left ( \frac{BC}{QR} \right )^{2}=\left ( \frac{AC}{PR} \right )^{2}\] Construction :-      \[Draw\: \: AM\perp BC\: \: and\: PN\perp QR\] Proof :-      \[\Delta ABC\sim \Delta PQR\] \[\therefore \: \: \frac{AB}{PQ}=\frac{BC}{QR}=\frac{AC}{PR}......(1)\]   \[and\: \: \angle A=\angle P,\: \angle B=\angle Q\: ,\: \angle C=\angle R\] \[Area\: of\: \Delta ABC=\frac{1}{2}\times BC\times AM\] \[Area\: of\: \Delta PQR=\frac{1}{2}\times QR\times PN\] \[\frac{Ar(\Delta ABC)}{Ar(\Delta P...