Isosceles Triangle Theorem - Proof | Don't Memorise

In this video, we will learn:
0:00 Isosceles triangle theorem
0:23 proof of Isosceles triangle theorem
1:54 Side-angle-side SAS condition for congruence

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#IsoscelesTriangleTheorem #IsoscelesTriangle #Triangles #neet2024 #infinityLearnNEET #neetsyllabus #neet2025

[InfinityLearn_NEET]

An isosceles triangle is a triangle that has two sides of equal length. An isosceles triangle therefore has two equal angles.

[minamohamed]

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[bhoomidalvi]

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[srijitasanyal]

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[harshamahajan]

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[shaafhassan]

It is very simple and easy, but plz also add some example question to make us or everyone to help them understand.
Anyway, thank u for making it easy. Keep up the Good Job !!

[darkgaming-zjzm]

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[Jacobfernandes]

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[raventheserpentine]

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[erichan]

I know I’m very late, but thank you for this! Very much help.

[FolpyGaming]

Can you tell me why every equilateral triangle is an isosceles triangle

[raazarazak]

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[zleepyjan]

Thank you from '2019 studying Geometry :D

[zahirullah]

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[probropalzgaming]

I came up with a solution independently, but it differs slightly in that the vertex angle (the unequal angle) must be mentioned, as well as the base.

In this solution, we bisect the vertex angle, knowing that this is also an altitude and a perpendicular bisector.
We then have two right angled triangles.
We divide the vertex angle into two because we have bisected it.
We now know two angles: the right angle and the bisected vertex angle.
Using the Property of the Sum of the Angles of a Triangle is equal to 180 degrees, we now know all the three angles of the triangle.
Repeating the process with the other triangle, we see that the base angles are equal in an isosceles triangle.

[daffodilmacaraya]

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[saritadhingra]

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[patakotisrinivas]

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