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The 2 perpendicular sides of a right angle triangle intersect each other at right angles
A triangle can have at most one obtuse angle, but triangles do not necessarily have any obtuse angles.
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
No right triangle can have any obtuse angles inside it.
An obtuse triangle is a triangle with one angle greater than 90 degrees. Since a perpendicular side is a side that forms a right angle with another side, an obtuse triangle can have 0 perpendicular sides if all its angles are obtuse. However, it can also have 1 perpendicular side if one of its angles is a right angle.
There can be only one pair of perpendicular lines in an isosceles triangle when it is a right angled isosceles triangle. A non right angled isosceles triangle has no pairs of perpendicular lines.
A right angle triangle has a pair of perpendicular lines that meet each other at 90 degrees.
None.
two if the triangle has a right angle
There are no parallel lines in any triangle but a right angle triangle has perpendicular line that meet each other at 90 degrees.
If it is a 45° 45° 90° isosceles right triangle, then there are 2 sides that are perpendicular.
Two
Two.
none
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It has a pair of perpendicular lines that meet at right angles to form the 90 degree angle of a right angle triangle.