No
There cannot be parallel lines in any [plane] triangles.
2
A shape that has two parallel lines and one perpendicular line is a right-angled triangle. In this triangle, one of the sides can be considered the base with the other being the height, which is perpendicular to the base. The two parallel lines can be imagined as the two sides of a right-angled triangle that are extended. Alternatively, this configuration can also represent a trapezoid if the opposite sides are parallel and one side is perpendicular to the base.
Its a Right Triangle * * * * * No, a right triangle has only one pair of perpendicular lines. One possible answer is a kite, with right angles at the left and right extremes. There would be an obtuse apex and an acute bottom (or the other way around).
An isosceles triangle has no parallel sides but 2 of its 3 sides are equal in length
There are no parallel sides in a right angle triangle
None !
There cannot be parallel lines in any [plane] triangles.
2 paris of lines
never
2
A shape that has two parallel lines and one perpendicular line is a right-angled triangle. In this triangle, one of the sides can be considered the base with the other being the height, which is perpendicular to the base. The two parallel lines can be imagined as the two sides of a right-angled triangle that are extended. Alternatively, this configuration can also represent a trapezoid if the opposite sides are parallel and one side is perpendicular to the base.
Its a Right Triangle * * * * * No, a right triangle has only one pair of perpendicular lines. One possible answer is a kite, with right angles at the left and right extremes. There would be an obtuse apex and an acute bottom (or the other way around).
An isosceles triangle has no parallel sides but 2 of its 3 sides are equal in length
Nope think 2 parallel sides like this ______________ ______________ there would have to be another 2 lines..and we all know there are 3 lines in a triangle :)
A triangle has by definition three intersecting sides. If two of the sides are parallel, they will never intersect, so no triangle can ever be formed.
All of the three sides of a triangle can be parts of parallel lines; it's just that no two of them can be parallel with each other. They can be parallel to some other line(s). In plane geometry parallel lines cannot form the sides of a common triangle.