Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. The concepts of trigonometry and quadratic equations are introduced in this grade. Concepts like real numbers, polynomials, statistics, probability, triangles, surface areas and volumes are extensions to the parts studied in earlier grades. The chapters include real numbers, polynomials, pair of linear equations in two variables, quadratic equations, arithmetic progressions, triangles, coordinate geometry, introduction to trigonometry, some applications of trigonometry, circles, constructions, circles and areas related to them, volumes and surface areas, In Class 10 Maths, all the chapters are equally important to understand for building a good concept base. But according to the weightage of the chapters, algebra which includes four chapters, coordinate geometry which includes one chapter and coordinate geometry which includes one chapter have highest marks. For higher classes, introduction to trigonometry is also very important as the main chapters for class 11th and 12th are based on the concepts of trigonometry only.