**Topics Deleted**

**Chapter**

**Deleted Page No. or Exercise No.**Euclid’s division lemma, decimal representation of rational numbers in terms of terminating/non-terminating recurring decimals Real Numbers Page No. 1-2, 9-10 Statement and simple problems on division algorithm for polynomials with real coefficients Polynomials Page No. 35-36, Exercise 2.3 Simple problems on equations reducible to linear equations, Cross Multiplication Method Pair of Linear Equations in Two Variables Page No. 61-62, Exercise 3.6 Area of a triangle Coordinate Geometry Page No. 113, Exercise 7.4 Proof of the following theorems are deleted: If a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse, the triangles on each side of the perpendicular are similar to the whole triangle and to each other. The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. In a right triangle, the square on the hypotenuse is equal to the sum of the squares on the other two sides. In a triangle, if the square on one side is equal to the sum of the squares on the other two sides, the angle opposite to the first side is a right angle. Triangles Page No. 122-123, 128-129, 130-131, 132-133 Full Chapter Deleted Constructions Page No. 144-149 Trigonometric ratios of complementary angles Trigonometric Identities Page No. 174-175 Frustum of a cone, problems involving converting one type of metallic solid into another, and other mixed problems (problems with a combination of not more than two different solids be taken) Surface Areas and Volumes Page No. 215-216, Exercise 13.5 Step Deviation Method for finding the mean Cumulative Frequency Graph Statistics –