Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
△
A
B
C
\triangle ABC
△
A
B
C
is right-angled at
C
C
C
and
△
D
E
F
\triangle DEF
△
D
E
F
is right-angled at
F
F
F
. If
A
B
=
D
E
AB = DE
A
B
=
D
E
and
A
C
=
D
F
AC = DF
A
C
=
D
F
, which congruence criterion justifies
△
A
B
C
≅
△
D
E
F
\triangle ABC \cong \triangle DEF
△
A
B
C
≅
△
D
E
F
? a)
SSS
\text{SSS}
SSS
b)
RHS
\text{RHS}
RHS
c)
SAS
\text{SAS}
SAS
d)
ASA
\text{ASA}
ASA
Browse the problem library