Class 9 Text Book Solutions

Q1: Use suitable identities to find the following products: (i) (x + 4)(x + 10) Ans: Using the identity (x + a)(x + b) = x2 + (a + […]

Exercise 3.1 Q1. How will you describe the position of a table lamp on your study table to another person?Ans: The above figure is a 3-D […]

Exercise 4.1 Q1. The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement. […]

Q1: 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) […]

Q1. Is zero a rational number? Can you write it in the form p/q where p and q are integers and q ≠ 0?Ans: We know that […]

Q1. State whether the following statements are true or false. Justify your answers.(i) Every irrational number is a real number.Ans: True Reason: Irrational Numbers – A number […]

Exercise 6.1 Q1. In Fig. 6.13, lines AB and CD intersect at O. If ∠AOC +∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex […]

Exercise 7.1 Q1. In quadrilateral ACBD, AC = AD and AB bisects ∠ A. Show that ∆ ABC ≅ ∆ ABD. What can you say about […]

Exercise 8.1 Q1. If the diagonals of a parallelogram are equal, then show that it is a rectangle.Ans:  Given that,AC = BDTo Prove:  ABCD is a […]