5. In Fig., POQ is a line. Ray OR is perpendicular to line PQ. OS is another ray lying between rays OP and OR. Prove that (∠ROS=frac{1}{2}(∠QOS-∠POS)). Lines and Angles Exercise 6.1 Previous Next Class 9 Lines and Angles…
4. In Fig., if x + y = w + z, then prove that AOB is a line. Lines and Angles Exercise 6.1 Previous Next Class 9 Lines and Angles Exercise 6.1 1. In Fig., lines AB and CD…
3. In Fig., ∠PQR = ∠PRQ, then prove that ∠PQS = ∠PRT. Lines and Angles Exercise 6.1 Previous Next Class 9 Lines and Angles Exercise 6.1 1. In Fig., lines AB and CD intersect at O. If ∠AOC…
2. In Fig., lines XY and MN intersect at O. If ∠POY = 90° and a : b = 2 : 3, find c. Lines and Angles Exercise 6.1 Previous Next Class 9 Lines and Angles Exercise 6.1 1.…
1. In Fig., lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70° and ∠BOD = 40°, find ∠BOE and reflex ∠COE. Lines and Angles Exercise 6.1 Previous Next Class 9 Lines and Angles Exercise 6.1…
7. Why is Axiom 5, in the list of Euclid’s axioms, considered a ‘universal truth’? (Note that the question is not about the fifth postulate.) Introduction To Euclid’s Geometry Exercise 5.1 Previous Next Class 9 Introduction To Euclid’s Geometry Exercise 5.1…
6. In Figure, if AC = BD, then prove that AB = CD. Introduction To Euclid’s Geometry Exercise 5.1 Previous Next Class 9 Introduction To Euclid’s Geometry Exercise 5.1 1. Which of the following statements are true and which are…
5. In Question 4, point C is called a mid-point of line segment AB. Prove that every line segment has one and only one mid-point. Introduction To Euclid’s Geometry Exercise 5.1 Previous Next Class 9 Introduction To Euclid’s Geometry Exercise…
4. If a point C lies between two points A and B such that AC = BC, then prove that (AC=frac{1}{2}AB). Explain by drawing the figure. Introduction To Euclid’s Geometry Exercise 5.1 Previous Next Class 9 Introduction To Euclid’s…
3. Consider two ‘postulates’ given below: (i) Given any two distinct points A and B, there exists a third point C which is in between A and B. (ii) There exist at least three points that are not on the…
