can two obtuse angles be supplementary/
Here is the answer to your query.
No, two obtuse angles cannot be supplementary.
Two angles are said to be supplementary if their sum is 180⁰. If one of the angles is obtuse, then the supplement of the angle is acute.
The sum of two obtuse angle is always greater than 180⁰.
110⁰ and 95⁰ are two obtuse angles.
110⁰ + 95⁰ = 205⁰ ≠180⁰