Translation, Reflection, Rotation

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way without altering its size or shape.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the term used for a transformation that slides a shape from one position to another?

Back

Translation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the term used for a transformation that turns a shape around a fixed point?

Back

Rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a point X is translated 3 units to the left and 9 units down, what are the new coordinates of X'?

Back

(-4, -5) if X is at (1, 4).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

When performing a translation, what operation is applied to the x and y coordinates?

Back

You add or subtract a number to/from x and y.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of a reflection transformation?

Back

A reflection transformation flips a shape over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the line called over which a shape is reflected?

Back

The line of reflection.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

In a rotation, what is the fixed point called around which the shape rotates?

Back

The center of rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the angle of rotation?

Back

The angle of rotation is the degree measure of how far a shape is turned around the center of rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between translation and reflection?

Back

Translation slides a shape without changing its orientation, while reflection flips a shape over a line.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5