Any triangle with one angle in the range (90, 180) degrees and the other two angles adding up to its supplement will form an obtuse triangle.
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acute, obtuse and right angles
Yes if it is in the form of an isosceles triangle with the other 2 acute angles being equal
Any three angles that sum to 180 can form a triangle.
No. The sum of the measures of the angles of a triangle must equal 180 degrees. 45+35+60=140, so these angles can't form a triangle.
a triangle always forms two angles?