You mean... What is a triangle.. if it has no angles?
It means 3 angles that can be found in a triangle.
If you mean EQUAL sides and angles, than an equilateral triangle.
Assuming that you mean 34, 45, and 100, no. The angles of a triangle need to add up to 180. You could have a triangle with angles of 35, 45, and 100.
If you mean "altitude", and by that you mean the height of the top of the triangle above its base, then draw a line from the top of the triangle to the base, at right angles to the base, and measure that line. Alternately, the height of a triangle above its base is twice the area divided by the base length.
Do you mean an equilateral triangle? Then it is a triangle that has three equal sides and three equal interior angles.
You mean "two". No. The sum of 2 obtuse angles must be over 180 degrees, which exceeds the sum of the 3 angles of a triangle = 180 degrees.
The answer depends on what you mean by "mean of triangle". There is no such geometric term.
3 Angles in a Triangle
If you mean an equilateral triangle then it is a triangle with sides of equal length and interior angles of 60 degrees
If you mean a scalene triangle, then no. A regular polygon is defined as having equal angles. A scalene triangle has 3 different angles (and 3 different length sides).
No. All three angles added together of a triangle must equal 180o by the Triangle Sum Theorem. So having two right angles would mean there could not be a third angle, so it could not be a triangle.