Quiz about Scale Factor for Similar Figures

Question 1

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

Accepted Answer

Similar

Answer

Congruent

Answer

Vertical

Answer

Complementary

Question 2

All angles in similar figures are congruent.

Accepted Answer

True

Answer

False

Question 3

Find missing side

Accepted Answer

7

Answer

5

Answer

9

Answer

11

Question 4

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

Accepted Answer

x = 63

Answer

x = 9

Answer

x = 28

Answer

x = 7

Question 5

Find the perimeter of the large triangle.

Accepted Answer

36

Answer

24

Answer

12

Answer

54

Question 6

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

Accepted Answer

x = 5

Answer

x = 20

Answer

x = 12

Answer

x = 4

Question 7

Solve for X.

Accepted Answer

2 ft

Answer

3 ft

Answer

4 ft

Answer

6 ft

Question 8

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture, set up a proportion)

Accepted Answer

32 feet

Answer

24 feet

Answer

21 feet

Answer

27 feet

Question 9

Which side length corresponds with EF?

Accepted Answer

LM

Answer

ML

Answer

OL

Answer

EH

Question 10

Sides that are in the same position are called

Accepted Answer

Corresponding Sides

Answer

Corresponding Angles

Answer

The Same

Answer

Congruent Sides

Question 11

Tell whether the two figures are similar. Explain your reasoning. (Hint: are they proportional?)

Accepted Answer

No, not similar because they are the same shape, but side lengths are not proportional.

Answer

Yes, similar because they are the same shape and side lengths are proportional.

Answer

Yes, same shape

Answer

No, different sizes

Question 12

Angles in the same position are called

Accepted Answer

Corresponding Angles

Answer

Corresponding Sides

Answer

The Same

Answer

Congruent Angles

Question 13

Sara can type 90 words in 4 minutes. About how many words would you expect her to type in 10 minutes at this rate? (Use proportion)

Accepted Answer

225 words

Answer

900 words

Answer

180 words

Answer

360 words

Question 14

If the scale factor is less than one, the new figure will be

Accepted Answer

a reduction

Answer

an enlargement

Answer

a scale factor

Answer

bigger

Question 15

If the scale factor is greater than one, the new figure will be

Accepted Answer

an enlargement

Answer

a reduction

Answer

a scale

Answer

not proportional

Question 16

Sides in similar figures must be proportional.

Accepted Answer

True

Answer

False

Question 17

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

Accepted Answer

x = 3

Answer

x = 1

Answer

x = 9

Answer

x = 5

Question 18

Find the height of the tree.

Accepted Answer

15 ft

Answer

8 ft

Answer

12 ft

Answer

13 ft

Question 19

The __________ is the ratio of a length of the image to the corresponding length on the original figure.

Accepted Answer

scale factor

Answer

reduction

Answer

enlargement

Answer

center of dilation

Question 20

On a map, the distance between two towns in 2.6 cm. The scale of the map is 1 cm:50 km. What is the actual distance between the two towns?

Accepted Answer

130 km

Answer

100 km

Answer

70 km

Answer

150 km

Question 21

A rectangular garden is 45 ft wide and 70 ft long. On a blueprint, the width is 9 in. Identify the length on the blueprint.

Accepted Answer

14 in

Answer

7 in

Answer

9 in

Answer

12 in

Question 22

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

Accepted Answer

72 feet

Answer

144 feet

Answer

36 feet

Question 23

If a Scale Factor is between 0 and 1, then your figure gets...

Accepted Answer

Smaller

Answer

Bigger

Answer

Does not change

Question 24

If a Scale Factor if greater than 1, then your figure gets...

Accepted Answer

Bigger

Answer

Smaller

Answer

Does not change

Question 25

sf = 1/2

Accepted Answer

Reduction

Answer

Enlargement

Question 26

sf = 5

Accepted Answer

Enlargement

Answer

Reduction

Question 27

sf = 0.8

Accepted Answer

Reduction

Answer

Enlargement

Question 28

sf = 2.5

Accepted Answer

Enlargement

Answer

Reduction

Question 29

sf = 3/2

Accepted Answer

Enlargement

Answer

Reduction

Question 30

sf = 3.5

Accepted Answer

Enlargement

Answer

Reduction

Scale Factor for Similar Figures

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