Class 9 Maths NCERT Solutions Chapter 5: Triangles Ex – 5.1 Question 1. In quadrilateral ACBD, AC = AD and AB bisects ∠A (see figure). Show that ∆ABC ≅ ∆ABD. What can you say about BC and BD? Solution: In ∆ABC and ∆ABD, we have AC = AD (Given) ∠CAB = ∠DAB […]
 Class 9 Maths NCERT Solutions Chapter 4: Lines and Angles Ex – 4.1 Question 1. In figure, lines AB and CD intersect at 0. If ∠AOC + ∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex ∠COE. Solution: Here, ∠AOC and ∠BOD are vertically opposite angles. ∴ ∠AOC = ∠BOD ⇒ ∠AOC
 Class 9 Maths NCERT Solutions Chapter 3: Introduction to Euclid’s Geometry Ex – 3.1 Question 1. Which of the following statements are true and which are false? Give reasons for your answers. (i) Only one line can pass through a single point. (ii) There are an infinite number of lines which pass through two distinct
 Class 9 Maths NCERT Solutions Chapter 2: Polynomials Ex – 2.1 Question 1. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer. (i) 4×2 – 3x + 7 (ii) y2 + √2 (iii) 3 √t + t√2 (iv) y+ 2y (v) x10+ y3+t50 Solution: (i) 4×2 – 3x +
 Class 9 Maths NCERT Solutions Chapter 1: Number Systems Ex – 1.1 Question 1. Is zero a rational number? Can you write it in the form pq,where p and q are integers and q ≠0? Solution: Yes, write 01(where 0 and 1 are integers and q = 1 which is not equal to zero). Question
 Class 11 NCERT Solutions Maths Chapter 11: Conic Sections Ex – 11.1 Ex – 11.2
Class 8 Maths NCERT Solutions Chapter 10: Visualising Solid Shapes Ex – 10.1 Question 1. For each of the given solid, the two views are given. Match for each solid the corresponding top and front views. The first one is done for you. Solution. Question 2. For each of the given solid, the three
Class 8 Maths NCERT Solutions Chapter 16: Playing with Numbers Ex – 16.1 Question 1. Find the values of the letters in each of the following and give reasons for the steps involved. Solution. 1. Here, there are two letters A and B whose values are to be found out. Let us see the
Class 8 Maths NCERT Solutions Chapter 15: Introduction to Graphs Ex – 15.1 Question 1. The following graph shows the temperature of a patient in a hospital, recorded every hour. (a) What was the patient’s temperature at 1 p.m.? (b) When was the patient’s temperature 38.5°C? (c) The patient’s temperature was the same two
Class 8 Maths NCERT Solutions Chapter 14: Factorisation Ex – 14.1 Question 1. Find the common factors of the given terms: Solution. Question 2. Factorise the following expressions: Solution. Question 3. Factorise: Solution. Â Ex – 14.2 Question 1. Factorise the following expressions: Solution. Question 2. Factorise: Solution. Question 3. Factorise the expressions: Solution. Question
