Perpendicular means meeting at a right angle.
A right triangle has 2 sides that are perpendicular, so it has 1 pair of sides that are perpendicular
They are known as the "legs" of the right triangle.
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Perpendicular means "at right angles". Therefore, a right triangle has two lines meeting, so forming one perpendicular angle.
The perpendicular sides of a right triangle are its legs. The remaining side is the hypotenuse.
A triangle has no parallel sides but in the form of a right angle triangle it has perpendicular lines that meet at right angles which is 90 degrees.
That would be a right triangle. The perpendicular lines make up the right angle.
Right triangle or 90 degree triangle.
A right triangle.