No. A triangle can never have parallel lines. Parallel lines run alongside each other, so that if they continued forever, they would never meet, such as the top and bottom of a square. All lines meet in a triangle.
A right triangle is distinguished by having one 90 degree angle (also known as a right angle).
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A right angle has no parallel lines, but it does have perpendicular lines that meet at right angles.
No, parallel lines do not meet at a right angle. In theory, parallel lines never meet. In practice, parallel lines on earth could meet at the North Pole and/or the South Pole. Perpendicular lines meet at a right angle.
Parallel lines or lines that don't intersect at right angles
No