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Byju's Answer
Standard VII
Mathematics
Congruence of Line Segments and Angles
If ABC∼ DEF...
Question
If
△
A
B
C
∼
△
D
E
F
, then which of the following is true?
A
B
C
.
E
F
=
A
C
.
F
D
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B
A
B
.
E
F
=
A
C
.
D
E
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C
B
C
.
D
E
=
A
B
.
E
F
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D
B
C
.
D
E
=
A
B
.
F
D
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Solution
The correct option is
C
B
C
.
D
E
=
A
B
.
E
F
△
A
B
C
∼
△
D
E
F
⇒
A
B
D
E
=
B
C
E
F
=
A
C
D
F
⇒
A
B
D
E
=
B
C
E
F
⇒
B
C
.
D
E
=
A
B
.
E
F
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Q.
Question 3
If
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B
C
∼
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D
F
a
n
d
Δ
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B
C
is not similar to
Δ
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E
F
, then which of the following is not true?
(A) BC.EF = AC.FD
(B) AB.EF = AC.DE
(C) BC.DE = AB.EF
(D) BC.DE = AB.FD
Q.
In a
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.
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is perpendicular to
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Q.
P is any point on base BC of ΔABC and D is the mid-point of BC. DE is drawn parallel to PA to meet AC at E. If ar (ΔABC) = 12 cm
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