Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
State Euclid’s common notion that allows you to conclude that if
A
B
=
C
D
AB = CD
A
B
=
C
D
and
C
D
=
E
F
CD = EF
C
D
=
E
F
, then
A
B
=
E
F
AB = EF
A
B
=
E
F
.
Browse the problem library