Theorem 13.1.3 9th math mathematics

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Hy!

Steemit friends!

I am sharing the solution of theorem 13.1.3 ,9th class mathematics.The statement of theorem is
The sum of length of any two sides of triangle is greater than length of third side.

Here is the solution of this theorem.

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Thanks....

Theorem 13.1.3 9th math mathematics | Ecency