Rotations and Dilations Flashcard review

Front

What happens to a shape when it is rotated 90° clockwise in quadrant III?

Back

The shape moves to quadrant II.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of a dilation with a scale factor k > 1?

Back

The shape becomes larger.

Tags

CCSS.8.G.A.3

Front

What type of dilation is represented by a scale factor k = 5/4?

Back

Enlargement.

Tags

CCSS.8.G.A.3

Front

Dilate Point B(0, 4) by a scale factor of 3. What is the new position?

Back

(0, 12).

Tags

CCSS.8.G.A.3

Front

If Triangle ABC has vertices A(2,3), B(-5,-1), C(0,5) and its image A'B'C' has vertices A'(4,6), B'(-10,-2), C'(0,10), what is the scale factor?

Back

k = 2.

Tags

CCSS.8.G.A.3

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a shape around a fixed point at a certain angle.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a shape but keeps its proportions the same.

Tags

CCSS.8.G.A.3

Front

What is the scale factor in a dilation?

Back

The scale factor is the ratio of the size of the image to the size of the original shape.

Tags

CCSS.8.G.A.3

Front

If a shape is dilated by a scale factor of 1, what happens to the shape?

Back

The shape remains the same size.

Tags

CCSS.8.G.A.3

Front

What quadrant does a point in quadrant III move to when rotated 90° clockwise?

Back

Quadrant II.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5