An obtuse-angled triangle is the one in which all the angles are less than 90°. State true or false.
An obtuse triangle is the one in which one angle is obtuse(greater than 90°) and the other two are acute. Thus, the given statement is not true.
An obtuse-angled triangle is one in which all the angles are less than 90∘.
State whether the following statement is true or false.
If one angle of a triangle is greater than 90 degrees, it is known as an obtuse-angled triangle.
If one angle of a triangle is less than 90°, it is known as an acute-angled triangle.
If one angle of a triangle is less than 90 degrees, it is known as an acute-angled triangle.