Question

which of the following reflective symmetries apply to the hexagon below?

symmetry
applies to the figure?
reflective symmetry over \\(\overline{ad}\\)
reflective symmetry over \\(\overline{ce}\\)

Explanation:

Analyze the geometric properties of the hexagon

Using the Reflective Symmetry knowledge point, we observe the markings on the hexagon \(ABCDEF\):

• The side lengths have tick marks: \(DE = EF\) (indicated by single tick marks on segments \(DE\) and \(EF\)), and \(DC = CB = BA = AF\) (indicated by single tick marks on segments \(DC\), \(CB\), \(BA\), and \(AF\)).
• The interior angles at vertices \(D\), \(B\), and \(F\) are marked as congruent.
• Points \(C\), \(E\), and \(A\) are vertices where the sides meet, with \(E\) being the midpoint-like vertex on the left vertical-ish boundary, and \(C\) and \(A\) being symmetric inner vertices.
• The shape is symmetric across a horizontal line passing through \(E\) and \(B\).

Evaluate reflective symmetry over line AD

Using the Line of Reflection knowledge point

$$ \text{Line } AD \text{ connects vertex } A \text{ and vertex } D. $$

Reflecting the figure across the line \(AD\) does not map the vertices onto each other because:

• Vertex \(F\) is on one side of \(AD\), but its potential reflection target \(C\) is not positioned symmetrically across \(AD\).
• The line of symmetry for this kite-like or arrowhead-like hexagon is the horizontal line \(EB\).
• Therefore, reflective symmetry over \(\overline{AD}\) does not apply.

Evaluate reflective symmetry over line CE

Using the Line of Reflection knowledge point

$$ \text{Line } CE \text{ connects vertex } C \text{ and vertex } E. $$

Reflecting the figure across the line \(CE\) does not map the figure onto itself because:

• The line \(CE\) is tilted and does not divide the hexagon into two mirror-image halves.
• For example, vertex \(B\) does not map to any corresponding vertex on the other side of \(CE\).
• Therefore, reflective symmetry over \(\overline{CE}\) does not apply.

Answer:

Question 1

Reflective symmetry over \(\overline{AD}\): No

Question 2

Reflective symmetry over \(\overline{CE}\): No