False. An angle of 167 degrees is actually an obtuse angle. Think of it like this: if you were to draw it out, it would be wider than a right angle but not quite a straight line. So, in the world of geometry, 167 degrees is definitely in the obtuse angle club.
True
In Euclidean geometry, a triangle must be one of these: acute, obtuse, or right. Maybe there is a non-Euclideangeometry for which some obtuse triangles can contain a right angle, but it doesn't happen in Euclidean geometry.
No
true
False. An angle of 167 degrees is actually an obtuse angle. Think of it like this: if you were to draw it out, it would be wider than a right angle but not quite a straight line. So, in the world of geometry, 167 degrees is definitely in the obtuse angle club.
False
True
Yes
In Euclidean geometry, a triangle must be one of these: acute, obtuse, or right. Maybe there is a non-Euclideangeometry for which some obtuse triangles can contain a right angle, but it doesn't happen in Euclidean geometry.
No
False
Yes but anything over 90 degrees is an obtuse angle
True and all 3 angles must add up to 180 degrees.
true
It is true
true