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CBSE - IX - Mathematics - Lines and Angles
prove that two lines that are respectivelyperpendicular to two intersecting lines intersect erach other
Asked by 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.
Asked by 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
Asked by 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.
Asked by 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 .
Asked by 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
Asked by 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
Asked by 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:
Asked by 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.
Asked by 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.
Asked by 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.
Asked by 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.
Asked by 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.
Asked by 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.
Asked by 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.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - IX - Mathematics - Lines and Angles
Show that in the given figure, AB || EF.
Asked by 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.
Asked by 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.
Asked by 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.
Asked by Topperlearning User
4th December 2013,
10:06 AM
