Question

which quadrilateral will always have 4 - fold reflectional symmetry?
trapezoid
rhombus
square
rectangle

Explanation:

• A trapezoid (in general) has no or at most 1 - fold reflectional symmetry.
• A rhombus has 2 - fold reflectional symmetry (along its diagonals).
• A rectangle has 2 - fold reflectional symmetry (along the lines joining the mid - points of its opposite sides).
• A square has 4 - fold reflectional symmetry. It has two lines of symmetry along the lines joining the mid - points of its opposite sides and two lines of symmetry along its diagonals.

Answer:

square