Class 9 Maths Chapter 5 Exercise 5.1 – Euclid’s Geometry Exercise 5.1 Solutions (Class 9) Introduction to Euclid’s Geometry 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. False. An infinite number of lines can be drawn … Read more
class 9 exercise 6.2 solutions – Lines and Angles Exercise 6.2 Solutions (Class 9) Lines and Angles 1. In Fig. 6.23, if AB || CD, CD || EF and y : z = 3 : 7, find x. Since AB || CD and CD || EF, then lines parallel to the same line are parallel … Read more
class 9 maths chapter 6 exercise 6.1- Lines and Angles (Class 9) Exercise 6.1 Solutions (Class 9) Lines and Angles 1. In Fig. 6.13, lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex ∠COE. ∠AOC = ∠BOD (Vertically opposite angles). Since ∠BOD = … Read more
triangles class 9 extra questions (R.D. Sharma Level – Class 9) Extra Practice Questions Triangles (R.D. Sharma Level – Class 9) 1. In quadrilateral ACBD, AC = AD and BC = BD. Prove that AB is the perpendicular bisector of CD. Proof: First, in ΔACB and ΔADB: • AC = AD (Given) • BC = … Read more
exercise 7.3 class 9th- Triangles (Class 9) Exercise 7.3 Solutions (Class 9) Triangles 1. ΔABC and ΔDBC are two isosceles triangles on the same base BC… Show that: (i) ΔABD ≅ ΔACD: In ΔABD and ΔACD: • AB = AC (Given, ΔABC is isosceles) • DB = DC (Given, ΔDBC is isosceles) • AD = … Read more
class 9th exercise 7.2 – Triangles (Class 9) Exercise 7.2 Solutions (Class 9) Triangles 1. In an isosceles triangle ABC, with AB = AC, the bisectors of ∠B and ∠C intersect each other at O. Join A to O. Show that: (i) OB = OC (ii) AO bisects ∠A. (i) Show OB = OC: In … Read more
class 9th exercise 7.1 – Triangles (Class 9) Exercise 7.1 Solutions (Class 9) Triangles 1. In quadrilateral ACBD, AC = AD and AB bisects ∠A. Show that ΔABC ≅ ΔABD. What can you say about BC and BD? Proof: In ΔABC and ΔABD: • AC = AD (Given) • ∠CAB = ∠DAB (AB bisects ∠A) … Read more
quadrilateral class 9 extra questions(R.D. Sharma Level – Class 9) Extra Practice Questions Quadrilaterals (R.D. Sharma Level – Class 9) 1. The angles of a quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles of the quadrilateral. Let the angles be 3x, 5x, 9x, and 13x. The sum … Read more