Triangle Theorems: Proving Fundamental Properties in CBSE Class 9 Maths - Part 3
Explore essential theorems related to triangles in this Class 9 CBSE Maths lesson. This part covers Theorem 1, which states that the sum of the angles in a triangle is 180 degrees, and Theorem 2, which discusses the relationship between an exterior angle
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Triangles: Class 9 cbse maths.
Theorem-1
The sum of the angles of a triangle is 180 degree.
Theorem-2
If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.
Theorem-1
The sum of the angles of a triangle is 180 degree.
Theorem-2
If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.
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Published
Mar 21, 2018
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