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Dilations: A Mathematical Change in Size

Dilations: A Mathematical Change in Size

Assessment

Interactive Video

•

Mathematics

•

10th - 12th Grade

•

Practice Problem

•

Medium

Created by

Wayground Content

Used 5+ times

FREE Resource

The video tutorial covers the concept of dilations in geometry, explaining how figures can be enlarged or reduced in size while maintaining their shape. It discusses the role of the scale factor and the center of dilation, providing both real-world and mathematical examples. The tutorial also includes practice problems to reinforce understanding.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main difference between a dilation and other transformations like translation, reflection, and rotation?

Dilations change the shape of the figure.

Dilations do not involve a fixed point.

Dilations result in a congruent image.

Dilations change the size of the figure.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of eye dilation, what does the optometrist do to your pupils?

Changes their shape.

Enlarges them.

Moves them to a different position.

Reduces their size.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the scale factor if a figure is reduced from 6 inches to 3 inches?

3

2

1/2

1/3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a figure is enlarged with a scale factor of 2, what happens to its size?

It triples in size.

It doubles in size.

It remains the same size.

It becomes half its original size.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you verify if an orange image is a dilation of a blue figure?

Check if the images are different shapes.

Check if the images are identical.

Check if the vertices line up with a center of dilation.

Check if the images are congruent.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in dilating a figure in the coordinate plane?

Add a fixed number to each coordinate.

Multiply each coordinate by the scale factor.

Subtract a fixed number from each coordinate.

Divide each coordinate by the scale factor.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a triangle's vertices are multiplied by a scale factor of 2, what type of dilation is it?

Enlargement

Reduction

Translation

Reflection

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