Triangle Similarity
Pre-Algebra · Flashcards
PRE-ALGEBRA · FLASHCARDS
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QUESTION
Triangle
A
B
C
ABC
A
B
C
is similar to triangle
D
E
F
DEF
D
E
F
.
A
B
=
4
AB = 4
A
B
=
4
,
D
E
=
10
DE = 10
D
E
=
10
and
B
C
=
6
BC = 6
B
C
=
6
. What is
E
F
EF
E
F
?
QUESTION
What is the difference between similar and congruent triangles?
QUESTION
Why are triangles with sides 2, 3, 4 and 4, 6, 9 not similar?
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ANSWER
The side ratios are 2, 2 and 2.25. They are not all equal, so the sides are not proportional.
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