Proportions & Similarity

A telephone booth that is 8ft tall casts a shadow that is 4ft long. Find the height of a lawn gnome that casts a 2ft shadow.

• 2 ft

• 4 ft

• 6 ft

• 8 ft

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

The triangles are similar. Solve for x.

• 4

• 5

• 6

• 7

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

Solve for x.

• 8
• 6
• 5
• -8

Tags

CCSS.HSG.SRT.B.4

Solve for x and y.

• x=11.43, y=42.78

• x=11.43, y=192.5

• x=14, y=48

• x=10, y=11.43

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

One property of similar triangles is that corresponding angles of two similar triangles are congruent. What is the second property of similar triangles?

• Corresponding sides are congruent

• Corresponding sides are unrelated

• Corresponding sides are equal

• Corresponding sides are equally proportional

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

What side corresponds with DE?

• CA

• AB

• EC

• BA

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

What side corresponds with BC?

• FD

• ED

• EC

• CB

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.B.5

What is the value of X?

• 1.92

• 2.04

• 2.15

• 2.5

Tags

CCSS.HSG.SRT.B.4

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11

Determine whether the triangles are similar.

• SSS~
• AA~
• SAS~
• not similar

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

Are the following similar? Why or why not?

• Yes
• No, the corresponding angles are not equal.
• No, the ratios of the corresponding sides are not equal.

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3