# sum of the three angles of a triangle is 180 | How to Prove | Theorem | Proof of the Sum of Angles|

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sum of the three angles of a triangle is 180 | How to Prove | Theorem | Proof of the Sum of Angles|

This video focuses on proving that the sum of the measure of a triangle is 180 degrees. The Alternate Interior Angles Theorem and the measure of a straight angle is used to prove the proposition that sum of the measure of a triangle is 180 degrees.

To prove this, we

- Draw any triangle

- And mark its angles

- We write Given and to prove

- To prove it, we do some construction

- In this construction, we mark two more angles

- Then we use Linear Pair, Alternate angles to prove this theorem

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#sum_of_angles_in_a_triangle

#sum_of_angles_of_a_triangle_is_180

#prove_that_the_sum_of_three_angles_of_a_triangle_is_180_degree

#theorem_6.7_class_9

#sum_of_angles_in_a_triangle_is_180_proof

#lines_and_angles_class_9_ncert

#lines_and_angles_theorem

#lines_and_angles_theorem_6.7

#learn_imperfect

#sum_of_angles_of_triangle

#the_angle_of_a_triangle

#sum_angles_triangle

#angles_sum_of_triangle

#triangle_angles_180

#a_triangle_is_180_degrees

#parallel_lines_and_transversal

#what_are_parallel_lines

#parallel_lines_angles

#angles_with_parallel_lines

#two_parallel_lines

#alternate_interior_angle

#alternative_interior_angle

#CBSE

#ICSE

#Maths

#Math

#Videos

#Class-9

#Class-IX

#Class_IX

#Grade-9

#Chapter-6

#sum_of_angles_of_a_triangle_proof

#180_degrees

#alternate_interior_angles

#angles_of_triangles

#sum_of_angles_of_a_triangle

#angles_of_a_triangle

#triangles_angles

#triangle_angles_sum

#triangle_angles

#sum_of_angles

#sum_of_triangle_is_180

#sum_of_triangle_angles

#sum_of_triangle_angles_proof

#Proof_of_the_Sum_of_Angles_of_a_Triangle_Measure_180_Degrees

#triangle_angle_sum

#angle_sum_in_a_triangle

#180_degrees_in_a_triangle

#geometry

#math

#triangle_angle_measure

#sum_of_angles_of_a_triangle_is_180_degrees

#sum_of_interior_angles_of_a_triangle_is_180_degrees

#sum_angle_property_of_triangle

#theorem_on_angles_of_a_triangle

#triangle_angles_property

#9_th_std_theorem

#angles_of_triangle

#triangle_angle_theorem

#interior_angles_of_a_triangle

#Angles_triangle

Disclaimer -

video is for educational purpose only.Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.

This video focuses on proving that the sum of the measure of a triangle is 180 degrees. The Alternate Interior Angles Theorem and the measure of a straight angle is used to prove the proposition that sum of the measure of a triangle is 180 degrees.

To prove this, we

- Draw any triangle

- And mark its angles

- We write Given and to prove

- To prove it, we do some construction

- In this construction, we mark two more angles

- Then we use Linear Pair, Alternate angles to prove this theorem

Other channel :- https://bit.ly/2W2F1AM

Join Facebook Group:-https://www.facebook.com/groups/aanavcreations/

Share link: https://dai.ly/x7vlhms

Like us on Facebook:- https://www.facebook.com/learnimperfect/

Follow us on instagram and twitter :- @learnimperfect

#sum_of_angles_in_a_triangle

#sum_of_angles_of_a_triangle_is_180

#prove_that_the_sum_of_three_angles_of_a_triangle_is_180_degree

#theorem_6.7_class_9

#sum_of_angles_in_a_triangle_is_180_proof

#lines_and_angles_class_9_ncert

#lines_and_angles_theorem

#lines_and_angles_theorem_6.7

#learn_imperfect

#sum_of_angles_of_triangle

#the_angle_of_a_triangle

#sum_angles_triangle

#angles_sum_of_triangle

#triangle_angles_180

#a_triangle_is_180_degrees

#parallel_lines_and_transversal

#what_are_parallel_lines

#parallel_lines_angles

#angles_with_parallel_lines

#two_parallel_lines

#alternate_interior_angle

#alternative_interior_angle

#CBSE

#ICSE

#Maths

#Math

#Videos

#Class-9

#Class-IX

#Class_IX

#Grade-9

#Chapter-6

#sum_of_angles_of_a_triangle_proof

#180_degrees

#alternate_interior_angles

#angles_of_triangles

#sum_of_angles_of_a_triangle

#angles_of_a_triangle

#triangles_angles

#triangle_angles_sum

#triangle_angles

#sum_of_angles

#sum_of_triangle_is_180

#sum_of_triangle_angles

#sum_of_triangle_angles_proof

#Proof_of_the_Sum_of_Angles_of_a_Triangle_Measure_180_Degrees

#triangle_angle_sum

#angle_sum_in_a_triangle

#180_degrees_in_a_triangle

#geometry

#math

#triangle_angle_measure

#sum_of_angles_of_a_triangle_is_180_degrees

#sum_of_interior_angles_of_a_triangle_is_180_degrees

#sum_angle_property_of_triangle

#theorem_on_angles_of_a_triangle

#triangle_angles_property

#9_th_std_theorem

#angles_of_triangle

#triangle_angle_theorem

#interior_angles_of_a_triangle

#Angles_triangle

Disclaimer -

video is for educational purpose only.Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.