07 July 2021
You have to learn the definitions by rote and practice the rational and irrational numbers as many times as possible.
Once you grasp the definitions comfortably, you will understand this chapter easily. Read the various types of polynomials, their coefficient, and degrees well. Coordinate Geometry Practice the Cartesian plane, the Graph, and the applications only from the NCERT book and that will be good enough.
Linear Equation in Two Variables
For this chapter, practice solving equations and making graphs; only then, you will have a better understanding of linear equations in two variables. Introduction to Euclid’s Geometry Simply learn the theories, axioms, and postulates along with the basic applications.
Lines and Angles
The trick here is practicing the angles and the application of theorems to solve the questions.
Learn the types and properties of the triangle from this chapter and apply them in the practice tests. This will make you knowledgeable about this chapter.
Learning the types and properties of quadrilaterals is the key.
Areas of Parallelograms and Triangles
Learn the different formulas for deriving the areas of different types of parallelograms and triangles and their applications- you will have better control over this chapter.
Here again, the theorems and properties of circles are where the trick lies. Learning and memorizing them is the key.
This topic, not being a theory-based one you need to practice by actually drawing and making angles and triangles of different types. Heron’s Formula Learn the formula and its applications and find the area of any triangle or quadrilaterals. This is the only trick for this chapter.
Surface Area and Volumes
Learn and memorize the formulae for calculating the volume and area of spheres, cones, cuboids, cubes, and cylinders.
This is one of the easiest topics in Class 9 Maths. Simply keep in mind the data collection and representation methods and you are done with it.
You will come across 4-5 questions from this chapter. Thus the formulas need to be well memorized. We have brought together the basic tips and tricks for every chapter of CBSE Class 9 Maths for you. Remember them and apply them when you sit to solve the numerical problems. But bear one thing in mind, for Maths, practice makes one perfect. The more they practice the more confidence they attain. Needless to say, cover the whole syllabus and practice each topic in a systematic way. That is the Mantra to solve the questions even without the help of any solution.