pladgirl
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Trisha noticed that three copies of a certain triangle could be arranged in a way that the three angles of the triangle form a straight line. what can she conclude from this observation

a. that each interior angle of the triangle must measure 60*
b.exterior must measure 60*
c.sum of interior angles must be 180*
d.sum of exterior angles must be 180*
show work please and i need it desperately

Respuesta :

Supernova
C) sum of interior angles must be 180°.

This is because a straight line = 180°, so if the interior angles of a triangle = 180° they can form a straight line if arranged correctly.

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