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Mathematics
Problem
In
△
A
B
C
\triangle ABC
△
A
B
C
,
A
B
=
4
cm
AB = 4\,\text{cm}
A
B
=
4
cm
,
B
C
=
6
cm
BC = 6\,\text{cm}
B
C
=
6
cm
and
∠
B
=
70
∘
\angle B = 70^{\circ}
∠
B
=
7
0
∘
. In
△
D
E
F
\triangle DEF
△
D
E
F
,
D
E
=
4
cm
DE = 4\,\text{cm}
D
E
=
4
cm
,
E
F
=
6
cm
EF = 6\,\text{cm}
E
F
=
6
cm
and
∠
E
=
70
∘
\angle E = 70^{\circ}
∠
E
=
7
0
∘
. Decide whether the two triangles are congruent. If they are, state the congruence criterion.
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