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oblique
An triangle is one that has no right angles. |
A right triangle is defined as a triangle that contains one right angle. Any triangle that does not contain a right angle is called an oblique triangle. The term oblique
is used to contrast with the specific case of a right triangle, emphasizing that the angles of the triangle are not right angles. We can now fill in the blank in the given sentence.
An oblique triangle is one that has no right angles. |
There are two types of oblique triangles. One of them is an acute triangle which is a triangle where all angles are acute.
The other type of oblique triangles is an obtuse triangle which is a triangle that has one obtuse angle.