Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
In
△
P
Q
R
\triangle PQR
△
P
QR
, points
S
S
S
and
T
T
T
are the midpoints of
P
Q
PQ
P
Q
and
P
R
PR
P
R
respectively. Explain why
S
T
∥
Q
R
ST \parallel QR
S
T
∥
QR
.
Browse the problem library