true
True, if two angles form a linear pair, they are supplementary and add up to 180 degrees, which means they form a straight angle. Conversely, if two angles form a straight angle, they also form a linear pair, as they share a common side and their non-adjacent sides are opposite rays. Thus, both statements are true.
its true because they have all have the same linear pair It's actually false
True
true
sometime true
A linear pair are always supplementary, 180 degrees not 90.
No.
true
True , but remember there cannot be two obtuse. Must be one acute & one obtuse. * * * * * NOT always true. Both may be right angles.
True only if the two angles are adjacent (i.e. have a point in common). By definition, supplementary angles add up to 180° therefore they are linear pairs, if they are adjacent. Otherwise false. Imagine drawing an angle of 40° at the top of the page and another of 140° at the bottom. These angles are supplementary but not a linear pair.
apex= True
true
true
The solution of a system of linear equations is a pair of values that make both of the equations true.
its true because they have all have the same linear pair It's actually false
True