Friday Morning Lights

What is the term for transformations that preserve the shape and size of a figure?

• Dilation

• Reflection

• Rigid Transformations

• Translation

One figure is _______ to another if there is a sequence of translations, rotations, and reflections that takes the first figure exactly onto the second figure.

• Congruent

• Similar

• Parallel

• Perpendicular

The original shape or figure before it undergoes a transformation is called?

• Image

• Pre-image

• Post-image

• Transformation

Which statement is true about a translation?

• A translation takes a line to a parallel line or itself.

• A translation takes a line to a perpendicular line.

• A translation requires a center of translation.

• A translation changes the size of the figure.

What is the definition of congruence?

• If two figures have the same shape, then they are congruent.

• If two figures have the same size, then they are congruent.

• If there is a sequence of transformations taking one figure to another, then they are congruent.

• If there is a sequence of rotations, reflections, and translations that take one figure to the other, then they are congruent.

Here are four triangles that have each been transformed by a different transformation. Which transformation(s) shows a rigid transformation(s)?

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Preserves shape after a transformation has been performed = _____

In 1-2 words share something that is going well for you in school this year.