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Chantelle constructs a triangle with angles measuring 65 degrees and 38 degrees. What must be true of the measure of the third angle in her construction?

Respuesta :

altavistard

Answer:

77 degrees

Step-by-step explanation:

The sum of the three interior angles of a triangle is always 180 degrees.  If two such angles are known, we add them together and subtract the sum from 180 degrees:  180  - 103 degrees, or 77 degrees.  This is the measure of the 3rd angle.

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