Question

___ of a triangle is the sum of all three side​

Answer 1

Perimeter

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Answer 2

Answer:

180°

Step-by-step explanation:

The sum of the three angles of a triangle is 180°. A triangle is said to be equilateral, if each of its sides has the same length. In an equilateral triangle, each angle has measure 60°. A triangle is said to be isosceles if at least two of its sides are of same length.