Because angles around a point add up to 360 degrees
Angles that add up to 180 degrees are always supplementary
The 3 interior angles of any triangle always add up to 180 degrees
they add up to 360 degrees.
They add up to 360 degrees
Because angles around a point add up to 360 degrees
Angles around a point add up to 360 degrees.
Angles around a point add up to 360 degrees
Angles that add up to 180 degrees are always supplementary
The sum of all angles in a triangle always add up to 180 degrees
The 3 interior angles of any triangle always add up to 180 degrees
The 3 interior angles of any triangle always add up to 180 degrees
they add up to 360 degrees.
The angles of a point add up to 360 degrees, because they make up a full turn and there are 360 degrees in a full turn.
They add up to 360 degrees
The 3 interior angles of ant triangle add up to 180 degrees.
Angles aren't congruent. Equal angles do not add up to 90 degrees unless they are 45 degrees. Complementary angles, by definition, add up to 90 degrees.