Triangles L1 | Congruence of Triangles | CBSE Class 9 | Maths Chapter 7 | NCERT Solutions (2019)

In today's session, Master Teacher Gopal Sir takes you through the Congruence of Triangles, as it is one of the most important and scoring topics in Maths, CBSE Class 9 of NCERT Maths Books.

Gopal Sir enlightens you with CBSE Class 9 exam preparation strategy for Maths with in-depth explanations and how to revise crucial topics. This session will mainly be around the Congruence of Triangles with proper Explanation.

In today's class, Gopal Sir will talk about the Congruence of Triangles topic and share some preparation tips on how to score more marks in CBSE Class 9 Maths Exam.

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[atharvakadam]

28:24
We can directly prove that both the triangles r congruent by ASA
As,
DAC=BAD=45°
DCA=ABD=45° &
AB = AC (Given)
😚

[dhirajsavita]

Very helpful video when online classes is going on I am able to recall everything in a simple way. Tysm Sir!!!

[sanjayjaiswal]

Superb sir 👏👏. Before seeing ur this video I thought triangle is tough chapter but after seeing ur this video for me triangle is easiest chapter .
Thank you so much sir .🙏🙏

[midhunr.s]

Thaannkkk uuuu so much sir...I was mad and confused with the congruency of triangle and now my all doubts are clear...And also I was afraid whether I could write the answers in my exams...but now I am ok...Very nicee and interactive class...once again thaannkkk uuuu sir😊

[kowsish]

Keep it sir, it is help to make my maths better. I also appreciate my friends to join vedantu. Thank you sir

[shrutisheth]

Monday is my maths finals...i just came n watched the whole video tysm sir

[sbchaudhary]

Median of an equilateral triangle= √3/2 a

[Ajit.tushir.]

length of the median = underoot 3a/2 cm

[lakshmikantrajhansa]

Sir u are amazing . Students need teachees like you

[shubhamvishwakarma]

Homework question:-

Median's length= sq.root of( (a)^2-(a/2)^2 )

[saimography]

WOW NICE LECTURE AND EXPLANATION. RECOMMEND OTHERS TO WATCH FOR BETTER UNDERSTANDING

[ajaytiwari]

Osm Sir u will clr my doubt in the triangle chapter

[NaveenKumar-iwqj]

THANK U SO MUCH SIR U R THE BEST MATHS TEACHER IN THE WORLD

[shubhamvishwakarma]

Please take below question in the next session;as it is a very beautiful question which can be solved using class 9 math:-

1)ABC is a triangle in which, angle B=double of angle C. D is a point on BC such that AD bisects angle BAC and AB=CD. Find the measure of angle BAC in numerical value

It is a solvable question.

[soniyaelavarasu]

Sir we can also use the SAS rule for the first question which you explain

[buddhadebchoudhury]

Sir, will you take class in Google Meet?

[mdabdulrahman]

in the question ad is an altitude of an isosceles traingle abc in which ab =ac prove that angle bad =angle dac can it be solved by sas property also

[arshussy]

THIS HELPED ME UNDERSTAND SM!!! THANK YOU SIR!!!

[patakotisrinivas]

nice explaination sir, , , thanks a lot

[pranavdewoolkar]

thanks sir plz like karo yaar itna mast explain kiya hai