# Parallel Lines And Transversals Free Doubts and Solutions

### CBSE - IX - Mathematics - Lines and Angles

## prove that two lines that are respectivelyperpendicular to two intersecting lines intersect erach other

**geetika123dcmc.com**11th February 2018, 6:30 PM

### CBSE - IX - Mathematics - Lines and Angles

## l1 ll l2 and m1 ll m2 prove that angle 1 =angle2.

**Khushi**28th August 2016, 1:56 PM

### CBSE - IX - Mathematics - Lines and Angles

## A TRIANGLE ABC IS RIGHT ANGLED AT A. L IS A POINT ON BC SUCH THAT AL IS PERPENDICULAR TO BC .PROVE THAT ANGLE BAC=ANGLE ACB

**vrishti TOKAS**28th July 2015, 8:30 PM

### CBSE - IX - Mathematics - Lines and Angles

## Prove that two lines that are respectively perpendicular to two intersecting lines intersect each other.

**SIDDHARTH SHARMA**13th September 2014, 11:50 PM

### CBSE - IX - Mathematics - Lines and Angles

## Prove that through a given point , we can draw only one perpendicular to a given line .

**SIDDHARTH SHARMA**13th September 2014, 11:47 PM

### CBSE - IX - Mathematics - Lines and Angles

## what isthe justifications for the questionasked in video part 3 in parallel and transversal topic

**sanatkothari99**25th July 2014, 10:01 PM

### CBSE - IX - Mathematics - Lines and Angles

## In triangle ABC angle B=45, angle=55 & AD bisects angle A, find angle ADB &angle ADC

**sarubhatia6**5th July 2014, 8:52 PM

### CBSE - IX - Mathematics - Lines and Angles

## In figure, PQ||SR, SQR = 25o, QRT = 65 o, find x and y:

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## In fig., if PQ||RS and PXM = 50° and MYS = 120°, find the value of x.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## l, m and n are parallel lines intersected by transversal 't' at A, B and C respectively. Find the measure of 1, 2 and 3. Give reasons.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## In figure, find the value of x and y and then show that AB||CD.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## If l, m, n are three lines such that l||m and n l. Prove that n m.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## Two unequal angles of a parallelogram are in the ratio 2:3. Find all the angles in degrees.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## Prove that the bisectors of vertically opposite angles are in a straight line.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## Prove that if two lines are perpendicular to the same line, are parallel to each other.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

## Show that in the given figure, AB || EF.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Lines and Angles

In figure, _{ is an isosceles triangle with LM = LN, and LP bisects }NLQ, prove that LP|| MN.

_{ is an isosceles triangle with LM = LN, and LP bisects }NLQ, prove that LP|| MN.

**Topperlearning User**20th May 2014, 2:52 PM

### CBSE - IX - Mathematics - Lines and Angles

## If two lines are intersected by a transversal in such a way that the bisector of a pair of angles are parallel, show that the two lines are parallel.

**Topperlearning User**4th December 2013, 10:27 AM

### CBSE - IX - Mathematics - Lines and Angles

## If a transversal intersects two parallel lines, then prove that each pair of consecutive interior angles are supplementary.

**Topperlearning User**4th December 2013, 10:06 AM