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Byju's Answer
Standard IX
Mathematics
RHS Criteria for Congruency
State true or...
Question
State true or false:
In a pentagon
A
B
C
D
E
,
A
B
=
A
E
,
B
C
=
E
D
and
∠
A
B
C
=
∠
A
E
D
.
, then
A
C
=
A
D
A
True
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B
False
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Solution
The correct option is
A
True
Draw the diagram and Join AC and AD in the diagram.
In triangles ABC and AED, it is given that
A
B
=
A
E
,
B
C
=
E
D
and
∠
A
B
C
=
∠
A
E
D
Therefore, by SAS rule we get,
△
A
B
C
≅
△
A
E
D
Thus by CPCT, we conclude that
A
C
=
A
D
.
Hence proved.
Suggest Corrections
0
Similar questions
Q.
State true or false:
In a pentagon
A
B
C
D
E
,
A
B
=
A
E
,
B
C
=
E
D
and
∠
A
B
C
=
∠
A
E
D
, then
∠
B
C
D
=
∠
E
D
C
Q.
State true or false:
In a pentagon
A
B
C
D
E
,
A
B
=
A
E
,
B
C
=
E
D
and
∠
A
B
C
=
∠
A
E
D
, then
B
P
=
E
P
, where
P
is the point of
intersection of
B
C
and
E
D
produced.
Q.
If
A
B
C
D
E
is a pentagon, then
→
A
B
+
→
A
E
+
→
B
C
+
→
D
C
+
→
E
D
+
→
A
C
equals
Q.
ABCDE is a pentagon, prove that
(i)
A
B
→
+
B
C
→
+
C
D
→
+
D
E
→
+
E
A
→
=
0
→
(ii)
A
B
→
+
A
E
→
+
B
C
→
+
D
C
→
+
E
D
→
+
A
C
→
=
3
A
C
→
Q.
State true or false:
In
Δ
A
B
C
,
∠
A
=
90
∘
and
A
D
⊥
B
C
.
Then,
A
B
2
+
A
C
2
=
B
C
2
.
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