AnswersCR CCSS Math 2 S2 M2960OXTriangle Similarity: SSS and SAS (Sec 7-3, 7-4, 7-5)

Triangle Similarity: SSS and SAS Answers

15 verified answers
2
Free Preview

Can the triangles be proven similar using the SSS or SAS similarity theorems?

A
Yes, △EFG ~ △KLM only by SSS.
B
Yes, △EFG ~ △KLM only by SAS.
C
Yes, △EFG ~ △KLM by SSS or SAS.
D
No, they cannot be proven similar by SSS or SAS.
3

Which statement best describes triangles UVW and XYZ?

A
They are similar and congruent.
B
They are similar, but not congruent.
C
They are congruent, but not similar.
D
They are neither congruent nor similar.
4

Given: ΔWXY is isosceles with legs WX and WY; ΔWVZ is isosceles with legs WV and WZ.

Answers:
♣::WX = WY; WV = WZ
♦::substitution property
♠::SAS similarity theorem
5

Complete the statements to verify that the triangles are similar.

Answers:
=:2
=:2
=:2
Therefore, △PQR ~ △STU by the theorem.:SSS similarity
6

1/2✔ 246

A
1/2
B
✔ 2
C
4
D
6
7

1/2✔ 246

A
1/2
B
✔ 2
C
4
D
6
8

SAS congruencySAS similaritySSS congruency✔ SSS similarity

A
SAS congruency
B
SAS similarity
C
SSS congruency
D
✔ SSS similarity
9

What additional information is needed to prove that the triangles are similar?

Answers:
To prove △XYZ ~ △MNO using SSS, you need to know that .:MN = 6 and XZ = 17.5
Now that you know the length of XZ, you need to know that angle O is congruent to to prove △XYZ ~ △MNO using SAS.:angle Z
10

angle X angle Y ✔ angle Z

A
angle X
B
angle Y
C
✔ angle Z
12

Which pairs of triangles are similar? Check all that apply.

A
△ABC ~ △DEF
B
△DEF ~ △GHI
C
△GHI ~ △ABC
D
△GHI ~ △JKL
E
△JKL ~ △ABC
13

Given: ΔWXY is isosceles with legs WX and WY; ΔWVZ is isosceles with legs WV and WZ.

Answers:
♣::WX = WY; WV = WZ
♦::substitution property
♠::SAS similarity theorem
14

division propertymultiplication property✔ substitution property

A
division property
B
multiplication property
C
✔ substitution property
15

✔ SAS similarity theoremSSA similarity theoremSSS similarity theorem

A
✔ SAS similarity theorem
B
SSA similarity theorem
C
SSS similarity theorem

Did you find these answers helpful?