The 3 external angles of a triangle add up to 360 degrees
Area of a triangle is 0.5*base*height
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.
The answer depends on what you mean by "mean of triangle". There is no such geometric term.
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.
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.