important theromes in of triangle class 9
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Step-by-step explanation:
Theorem: The sum of any two sides of a triangle is greater than the third side.
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This theorem can be proved in similar way as the previous one.
Angles opposite to equal sides of a triangle are equal.
Sides opposite to equal angles of a triangle are equal.
Each angle of an equilateral triangle is of 60
Answered by
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Answer:
Two circles of the same radii are congruent. Two squares of the same sides are congruent.
...
This theorem can be proved in similar way as the previous one.
Angles opposite to equal sides of a triangle are equal.
Sides opposite to equal angles of a triangle are equal.
Each angle of an equilateral triangle is of 60°.
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