It is a square
a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
A quadrilateral where each angle is a right angle is called a rectangle. In addition to having four right angles, a rectangle also has opposite sides that are equal in length. If all four sides are of equal length, it is specifically termed a square. Thus, all rectangles are quadrilaterals, but not all quadrilaterals with right angles are rectangles unless they also have equal opposite sides.
parallelogram in general, and a rhombus also, which is a type of parallelogram
A rectangle is defined as "a parallelogram with one right angle" A parallelogram is defined as "a quadrilateral with opposite sides equal and parallel" This makes a rectangle a sort of second-generation quadrilateral!
It is a rhombus or a parallelogram
a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
A quadrilateral where each angle is a right angle is called a rectangle. In addition to having four right angles, a rectangle also has opposite sides that are equal in length. If all four sides are of equal length, it is specifically termed a square. Thus, all rectangles are quadrilaterals, but not all quadrilaterals with right angles are rectangles unless they also have equal opposite sides.
you can prove any one of these statements to prove that quadrilateral is a rectangle: -- Opposite sides are parallel and any one angle is a right angle. -- Opposite sides are equal and any one angle is a right angle. -- All four angles are right angles. -- Adjacent angles are complementary, and one of them is a right angle. -- Opposite sides are either equal or parallel, and area is equal to the product of two adjacent sides. -- Diagonals are equal.
A rectangle is a parallellogram with one right angle; A parallelogram is a quadrilateral with opposite sides equal and parallel.
parallelogram in general, and a rhombus also, which is a type of parallelogram
A rectangle is defined as "a parallelogram with one right angle" A parallelogram is defined as "a quadrilateral with opposite sides equal and parallel" This makes a rectangle a sort of second-generation quadrilateral!
Rectangle, possibly a square if the adjacent sides are also equal.
A rhombus is a 4 equal sided quadrilateral with equal opposite acute angles and equal opposite obtuse angles with diagonals that bisect each other at right angles.
It is a parallelogramIf one of the angles is a right angle (then they all are) and the quadrilateral is a rectangle.If both pairs of sides are equal in length (but none of the angles is a right angle) the quadrilateral is a rhombus.If the sides are equal and one of the angles is a right angle, the quadrilateral is a square.
A rhombus
It is a rhombus or a parallelogram
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