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Decide if shapes are similar or congruent, based on what you're learned about transformations.

Think you understand the concepts of congruence and similarity, and the transformations required to create each type of relationship? Use these flashcards to measure your skills. Identify the type of transformation shown on each card, and decide if the resulting figures are congruent or similar. Then click the card to check your answer. Continue working through the cards until you can answer all of them correctly.

Click here to begin.

What type of transformation is shown here?
Are the figures similar or congruent?

transformation image

This is a dilation, or resizing. The shape is the same, but the size is different, which makes the two figures similar.

What type of transformation is shown here?
Are the figures similar or congruent?

transformation image

This is a rotation and then a translation. The shape and size of the original figure are preserved, so these two figures are congruent.

What type of transformation is shown here?
Are the figures similar or congruent?

transformation image

This is a translation, a transformation that preserves the shape and size of the original figure. Therefore, the two figures are congruent.

What type of transformation is shown here?
Are the figures similar or congruent?

transformation image

This is a reflection. Reflection preserves the shape and size of the original figure, so these two figures are congruent.

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