Back to Describe transformation effects — Problem 4 · Task Set 3

Exercises: Symmetries of Geometric Figures

Work through each section in order. Use precise transformation language in your explanations — state angles of rotation and lines of reflection exactly.

Grade 9·21 problems·~30 min·Common Core Math - HS Geometry·standard·hsg-co-a-3

Work through problems with immediate feedback

Fluency Practice

Identify the rotational and reflective symmetries of each figure.

$Rectangle with its diagonal, horizontal midline, and vertical midline drawn as dashed lines.$

A non-square rectangle has vertices at $(0,0)$ , $(6,0)$ , $(6,2)$ , and $(0,2)$ . Which of the following is a line of reflective symmetry for this rectangle?

The diagonal from $(0,0)$ to $(6,2)$

The line $y = 1$ (horizontal midline)

The line $y = x$

Any line through the center $(3,1)$