7th Grade Scale Factor

Front

The two right triangles below are similar. What is x, the missing side length in triangle DEF? Options: 3.75, 9.75, 10, 12

Back

9.75

Tags

CCSS.HSG.SRT.A.2

Front

Two objects that are the same shape but not the same size are _______. Options: Congruent, Vertical, Similar, Complementary

Back

Similar

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

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

Back

x = 16.5 cm

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

All angles in similar figures are congruent.

Back

True

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

Find missing side: 5, 7, 9, 11

Back

7

Tags

CCSS.HSG.SRT.A.2

Front

A picture of a school’s mascot is 18 in. wide and 24 in. long. It is enlarged proportionally to banner size. If the width is enlarged to 54 in., what is the length of the banner?

Back

72 in

Tags

CCSS.7.G.A.1

Front

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?

Back

32 feet

Tags

CCSS.HSG.SRT.B.5

Front

Which side length corresponds with EF? Options: ML, LM, OL, EH

Back

LM

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

Are the two figures similar? (Hint: are they proportional?)

Back

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

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

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)

Back

225 words

Tags

CCSS.6.RP.A.3B