trapezoid
rectangle
With no acute or obtuse angles, the shape must only have right angles. For a quadrilateral, that limits it to a square or rectangle. Because each side has a different length than the one next to it, it has to be a rectangle.(Or, it could be a shape with any amount of sides above 4, as long as the angles are all right angles)
no triangles have parraell sides!
"How are straight angles different from right angles?" Is this a statement?
A rectangle has 4 sides not the same length and 4 right angles.
a parallelogram with four right angles with sides different in length and width is That would be a rectangle. - HistoryDork
A rhombus.
rectangle
With no acute or obtuse angles, the shape must only have right angles. For a quadrilateral, that limits it to a square or rectangle. Because each side has a different length than the one next to it, it has to be a rectangle.(Or, it could be a shape with any amount of sides above 4, as long as the angles are all right angles)
no triangles have parraell sides!
There are infinitely many quadrangles - all of which are polygons - that have sides of different length and angles that are not right angles. There is, however, no specific name for such quadrangles because there are so many different possible shapes.
"How are straight angles different from right angles?" Is this a statement?
A quadrilateral with 4 right angles and opposite sides that are parallel can be either a rectangle if the adjacent sides are of different length or a square if the adjacent sides are of the same length.
Rectangle
An isosceles trapezoid will have diagonals of equal length but will never contain right angles by definition. A square and rectangle will have diagonals of equal length but will contain 4 right angles. A rhombus and any other parallelogram that does not contain right angles will not have diagonals of equal length.
A rectangle has 4 sides not the same length and 4 right angles.
A parallelogram with equal angles and two pairs of sides of different lengths is a Rectangle. The rectangle is a special case of the parallelogram where the angles are all equal at 90°.