Quiz about Dilation and Similar Figures and Proportional and Side and Angle

Question 1

What is the value of X?

Accepted Answer

X=2

Answer

X=4

Answer

X=6

Answer

X=3

Question 2

Are the triangles similar?

Accepted Answer

Yes

Answer

No

Question 3

Are the triangles similar?

Accepted Answer

No

Answer

Yes

Question 4

When you dilate a figure you...

Accepted Answer

make it larger or smaller.

Answer

slide it.

Answer

turn it.

Answer

flip it.

Question 5

The pair of figures is similar. Find the missing side.

Accepted Answer

x = 63

Answer

x = 9

Answer

x = 28

Answer

x = 7

Question 6

How does a dilation change the angles of a polygon?

Accepted Answer

Dilations do not change the angles.

Answer

It changes by the scale factor.

Answer

It is impossible to answer this question.  The angles change unpredictably.

Answer

The angles all change to larger angles.

Question 7

Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)

Accepted Answer

A'(9,9) B'(18,18) C'(27,9)

Answer

A'(6,6) B'(9,9) C'(12,6)

Answer

A'(0,0) B'(3,3) C'(6,0)

Answer

A'(1,1) B'(2,2) C'(3,1)

Question 8

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.

Accepted Answer

(-5,-3)

Answer

(5,3)

Answer

(20,12)

Answer

(-20,-12)

Question 9

Two objects that are the same shape but not the same size are _______.

Accepted Answer

Similar

Answer

Congruent

Answer

Vertical

Answer

Complementary

Question 10

Which triangle is similar to the above triangle ?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 11

When a dilation has a scale factor greater than one, the dilation is an enlargement.

Accepted Answer

True

Answer

False

Question 12

When the scale factor of a dilation is less than one, the dilation is a reduction.

Accepted Answer

True

Answer

False

Question 13

Corresponding sides in similar figures must be proportional.

Accepted Answer

True

Answer

False

Question 14

Two shapes that are similar are also congruent

Accepted Answer

False

Answer

True

Question 15

A triangle has sizes measuring 11 cm, 16 cm, and 16 cm. A similar triangle has sides measuring x cm, 24 cm, and 24 cm. What is x?

Accepted Answer

x = 16.5 cm

Answer

x = 19 cm

Answer

x = 24 cm

Answer

x = 3 cm

Question 16

Find the slope of the line that passes through the points (2, 4) and (6, 12)

Accepted Answer

2

Answer

1/2

Answer

-1/2

Answer

-2

Question 17

Find the slope of the line that passes through
(10, 1) and (5, 2)

Accepted Answer

-1/5

Answer

1/5

Answer

5

Answer

-5

Question 18

Find the slope of the line.

Accepted Answer

1/2

Answer

-1/2

Answer

2/1

Answer

-2/1

Question 19

Find the slope

Accepted Answer

7/5

Answer

-5/7

Answer

-7/5

Answer

5/7

Question 20

Find the slope of the line that passes through
(-4, 7) and (-6, -4)

Accepted Answer

11/2

Answer

2/11

Answer

-2/11

Answer

-11/2

Question 21

A dilation is which of the following:

Accepted Answer

Either an enlargement or a reduction

Answer

only an enlargement

Answer

only a reduction

Answer

Neither an enlargement or a reduction

Question 22

Dilations take perpendicular lines to perpendicular lines.

Accepted Answer

True

Answer

False

Question 23

Dilations of an angle are congruent to the original angle.

Accepted Answer

True

Answer

False

Question 24

Dilations of a triangle are congruent to the original triangle.

Accepted Answer

False

Answer

True

Question 25

Dilations of a triangle are similar to the original triangle.

Accepted Answer

True

Answer

False

Question 26

Write an equations for this line.

Accepted Answer

(y-2)/(x-2) = 2

Answer

(y-6)/(x-10)=2

Answer

(y+2)/(x+2) = 2

Answer

(y+6)/(x+10)=2

Question 27

What is the coordinate for a?

Accepted Answer

5

Answer

6

Answer

8

Answer

1

Question 28

What is the coordinate for b?

Accepted Answer

6

Answer

5

Answer

8

Answer

1

Dilation and Similar Figures and Proportional and Side and Angle

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