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Similar Figures Worksheet

This worksheet focuses on understanding and identifying similar figures, including triangles and quadrilaterals, by examining corresponding angles and proportional side lengths.

Grade 8 Math GeometrySimilar Figures
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Includes

Multiple ChoiceFill in the Blanks2 Short AnswerCustomTrue / False

Standards

CCSS.MATH.CONTENT.8.G.A.4

Topics

mathgeometrysimilar figuresgrade 8
8 sections · Free to use · Printable
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Similar Figures Practice

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Read each question carefully and answer to the best of your ability. Show all your work when necessary.

1. Which of the following statements is true about similar figures?

a

Corresponding sides are congruent.

b

Corresponding angles are congruent.

c

Both corresponding sides and angles are congruent.

d

None of the above.

2. If two triangles are similar, and the ratio of their corresponding sides is 1:3, what is the ratio of their perimeters?

a

1:3

b

1:6

c

1:9

d

3:1

3. If two figures are similar, their corresponding angles are   and their corresponding sides are  .

4. The symbol for similarity is  .

5. Triangle ABC has side lengths 6 cm, 8 cm, and 10 cm. Triangle DEF is similar to Triangle ABC and has a scale factor of 2. What are the side lengths of Triangle DEF?

6. Observe the triangles below. Are they similar? Justify your answer.

88ABC
1212DEF

7. All squares are similar.

T

True

F

False

8. All rectangles are similar.

T

True

F

False

9. A rectangular photograph is 4 inches wide and 6 inches long. If you enlarge the photograph to be similar, and the new width is 10 inches, what is the new length?