**NCERT Solutions For Class 9, Maths, Chapter 6, Lines And Angles, Exercise 6.1**is very important exercise for students because it start basics of Lines & angles. This exercise 6.1 consists of total five questions to discuss. Well, in some cases most of the time students could not find their simple solutions in their class. This happens most often in Maths class. You already know that maths is subject of fundamentals needed more concentration. So, here we have given a best solutions for your NCERT Class 9, maths chapter 6 with colored images.

**Class 9, Maths, Chapter 6, Exercise 6.1, Solutions**

**Q.1. In Figure, lines AB and CD intersect at O. If**

**∠**

**AOC +**

**∠**

**BOE = 70**

**°**

**and**

**∠**

**BOD = 40**

**°**

**, find**

**∠**

**BOE and reflex**

**∠**

**COE.**

**Ans:**

**Q.2. In Figure, lines XY and**

**MN intersect at O. If**

**∠**

**POY = 90**

**°**

**and a : b = 2 : 3, find c.**

**Ans:**

**Q.3. In Figure,**

**∠**

**PQR =**

**∠**

**PRQ, then prove that**

**∠**

**PQS =**

**∠**

**PRT.**

**Ans:**

**Q.4. In Figure, if x + y =**

**w + z, then prove that AOB is a line.**

**Ans:**

**Q.5. In Figure, 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).**

**Ans:**

**Q.6. It is given that**

**∠**

**XYZ = 64**

**°**

**and XY is produced to point P. Draw a figure from the given information. If ray YQ bisects**

**∠**

**ZYP, find**

**∠**

**XYQ and reflex**

**∠**

**QYP.**

**Ans:**

**NCERT Solutions For Class 9 Maths Chapter 6, Lines And Angles (All Exercises)**

**Class 9, Maths, Chapter 6, Lines And Angles**