Dilation and Angles in Triangles

Dilation and Angles in Triangles

Assessment

Interactive Video

Mathematics

8th Grade

Practice Problem

Hard

Created by

Thomas White

FREE Resource

This video tutorial covers the concept of dilations in geometry, focusing on problems involving quadrilaterals and triangles. It explains how to perform dilations with different scale factors and centers, and how to calculate angles in right triangles. The tutorial provides step-by-step instructions for each problem, helping students understand the geometric transformations and their properties.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the scale factor used to dilate quadrilateral ABCD from point B to B'?

3

2

4

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the center of dilation for triangles B and C?

By calculating the area

By using a protractor

By measuring the angles

By drawing straight lines from corresponding angles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If triangle B is a dilation of triangle A with a scale factor of 4, what is the scale factor of triangle A as a dilation of triangle B?

4

1/4

1/2

2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the scale factor when triangle B is a dilation of triangle C?

1/3

2/3

3/2

1/2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When dilating triangle ABC with a scale factor of 2, how do you find the location of A'?

Move twice the distance from the center

Move half the distance from the center

Move the same distance from the center

Move three times the distance from the center

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the scale factor when dilating triangle ABC with a center at (0,0) and a scale factor of 1/2?

1

2

1/4

1/2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is triangle A''B''C'' a dilation of triangle A'B'C'? If yes, what is the scale factor?

Yes, with a scale factor of 2

No, it is not a dilation

Yes, with a scale factor of 1/2

Yes, with a scale factor of 1/4

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