An obtuse angle
An obtuse triangle
It is an obtuse triangle if its 2 other acute angles are different in sizes.
Right, obtuse, acute
Acute obtuse right stright
Acute, obtuse and opposite angles are equal
With any type of triangle, the angles add up to 180 degrees. It does not matter if it is equilateral, scalene, or acute, or even right, obtuse, or acute.
There are 3 acute angles and 2 obtuse angles in the letter A.
It is an obtuse scalene triangle
It can have angles which are acute, right, obtuse or reflex. Not straight angles, though.
All triangles have 3 sides and 3 interior angles that add up to 180 degrees and they are classed as follows:- 1 Scalene triangle has 3 acute angles of different sizes 2 Right angle triangle has a 90 degree angle and 2 acute angles 3 Obtuse triangle has an obtuse angle and 2 acute angles 4 Isosceles triangle has 2 equal angles plus another angle 5 Equilateral triangle has 3 equal 60 degee angles
well... first you must say what kind of triangle it is whether its isisceles or anything else and then meausre the angle and there you go. ex. acute obtuse equalateral triangle.