No. All three angles must add up to 180. If you have a right angle, the other two angles will each be less than 90 degrees (acute). If you have an obtuse angle, the other two angles will be less than...
Neither. An acute triangle has all angles less than 90 degrees. An obtuse triangle has one angle more than 90 degrees. A right triangle is simply just a right triangle, since it has one angle of 90...