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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21 views • Mar 21, 2018
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Triangles: Class 9 cbse maths.<br />Theorem-1<br />The sum of the angles of a triangle is 180 degree.<br />Theorem-2<br />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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21
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8:42
Published
Mar 21, 2018
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