Module 3: Dilations Flashcard

Front

Dilation rules use ______________ to change the ___________ of a shape.

Back

multiplication; size

Front

If the scale factor is less than 1, the dilation is...

Back

a reduction

Front

Polygon ABCDE will be dilated by a scale factor of 2. Which statement is NOT true of the dilation?

Back

The original and the image will be congruent.

Front

What is the scale factor if the coordinates of C' are (2, -1) after dilation?

Back

Front

Triangle ABC will be dilated by a scale factor of 1/2. What will be the coordinates of C'?

Back

(3, -1.5)

Front

What happens to the angles of a shape during dilation?

Back

The corresponding angles of the two shapes remain equal.

Front

What is the effect of a scale factor greater than 1 on a shape?

Back

It results in an enlargement of the shape.

Front

What is the relationship between the original shape and the dilated shape when the scale factor is 1?

Back

The original shape and the dilated shape are congruent.

Front

How do you determine the coordinates of a dilated point?

Back

Multiply the original coordinates by the scale factor.

Front

What is the scale factor if a shape is reduced to half its size?

Back