no
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
An Obtuse Triangle
-- No right triangle, acute triangle, or equilateral triangle has an obtuse angle in it. -- If a triangle has an obtuse angle in it, then it's called an obtuse triangle. -- No triangle can have more than one obtuse angle in it .
obtuse triangle
A triangle containing an obtuse angle is an obtuse triangle.
a right triangle has a 90 degree angle in one of the corners
Obtuse Triangle
If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.
A right triangle has one angle that is a right angle (90 degrees). An obtuse triangle has one angle that is obtuse (between 90 and 180 degrees). An acute triangle is a triangle in which all three angles are acute (less than 90 degrees).
an Obtuse triangle
An obtuse triangle.
An obtuse triangle