an isosceles trapazoid
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.
trapezoid
It would be a rectangle.
The shape you are looking for is a quadrilateral. If you have a square, all angles MUST be right angles. A parallelogram can also have 4 equal sides in length and parallel sides, but a parallelogram doesn't have right angles.
A Rhombus had 2 pairs of parallel sides and has NO right angles. :)
A square has 4 equal sides, 2 pairs of parallel sides and 4 right angles.
A trapezoid has 4 sides, 2 right angles and 1 pair of parallel lines
Opp. sides & angles are equal.opp. sides are parallel each angle is 90
TRAPEZOID
trapezoid
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.
four right angles four sides/edges two sets of parallel lines (ect, ect...)
A trapezoid has one pair of parallel side and can have two adjacent angles that are right.
A right trapezium.
Perpendicular lines = lines which are at right angles (90 degrees) to each otherDiamond = 2 pairs of parallel lines
square and rectangles are technicality squares
a tetrahedon