Which of the following statements is never true? a. a rectangle is a parallelogram. b. a square is a rhombus. c. a parallelogram is a rhombus and d. a trapezoid is a rectangle.

D). A Trapezoid is a rectangle

Explanation:

A Trapezoid can never be a rectangle. As a Trapezoid is a quadrilateral with at least two parallel sides but do not have all of its sides at right angles like rectangle which is a major difference between a trapezoid and a rectangle.

A rectangle is a quadrilateral with opposite sides equal and parallel, also all of its sides are at right angles with each other i.e 90 degree.

A parallelogram is a quadrilateral with opposite sides parallel.

A square can be a rhombus but a rhombus cannot be a square as a square has all of its sides at right angles which is not necessary in case of a rhombus.

Also, a parallelogram can be a rhombus but a rhombus is always a parallelogram.

Thus, option (D) can never be true in any case.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.