Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
ABCD is a parallelogram. Prove that
△
A
B
C
≅
△
C
D
A
\triangle ABC \cong \triangle CDA
△
A
B
C
≅
△
C
D
A
.
Browse the problem library