Question

prove that the sum of the angle of the triangle is 180 degree class 9 ​

Answer 1

Answer:

In other words, the other two angles in the triangle (the ones that add up to form the exterior angle) must combine with the angle in the bottom right corner to make a 1800 angle. The inevitable conclusion of this game is that the interior angles of a triangle must always add up to 1800.

Answer 2

Step-by-step explanation:

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