a right angled triangle
Yes 1 pair
None
Its Impossible. For there to be a shape where all five lines meet perfectly and there to be two pairs of perpendicular sides, there must three right angles. Alternitavely, you could have 1 pair of perpendicular lines and two rights angles, but certainly not both.
a square
Trapizium
A right-angle triangle.
a right angled triangle
Yes 1 pair
None
Its Impossible. For there to be a shape where all five lines meet perfectly and there to be two pairs of perpendicular sides, there must three right angles. Alternitavely, you could have 1 pair of perpendicular lines and two rights angles, but certainly not both.
A three-sided shape with one pair of perpendicular lines is called a right triangle. In a right triangle, one angle is a right angle (90 degrees), which means that one pair of sides are perpendicular to each other. The other two angles are acute, measuring less than 90 degrees. The Pythagorean theorem can be used to find the lengths of the sides of a right triangle.
No, but it does have 1 pair of opposite parallel lines of different lengths
a square
One pair of perpendicular lines would create one right angle. Some kites have one right angle.
a trapazoid
A shape with no right angles and one pair of parallel lines would be called a trapezoid in the USA, and a trapezium in Britain.