None.
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 triangle can have no parallel lines.
If it is a 45° 45° 90° isosceles right triangle, then there are 2 sides that are perpendicular.
In an equilateral triangle: 3 In an isosceles triangle: 1 In a scalene triangle: 0
None of the sides of any triangle are parallel. However, you can draw an infinite number of parallel lines inside any triangle.
2
None.
An isosceles triangle has no parallel sides but 2 of its 3 sides are equal in length
An isosceles triangle has no parallel sides but it does have two equal sides
There are no parallel sides in a right angle triangle
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.
An isosceles triangle has no parallel sides but it does have 2 sides of equal lengths
There are 0 parallel lines that a triangle has.
An isosceles triangle has only 1 line of symmetry.
how many sets of parallel lines are in a triangle
It varies depending on the angles and lines of the triangle.
A triangle can have no parallel lines.