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Mathematics
Mathematics
Problem
In
△
P
Q
R
\triangle PQR
△
P
QR
, it is given that
∠
Q
=
∠
R
\angle Q = \angle R
∠
Q
=
∠
R
. Which of the following statements must be true? a)
P
Q
=
P
R
PQ = PR
P
Q
=
P
R
b)
Q
R
=
P
R
QR = PR
QR
=
P
R
c)
P
Q
=
Q
R
PQ = QR
P
Q
=
QR
d)
P
Q
+
P
R
=
Q
R
PQ + PR = QR
P
Q
+
P
R
=
QR
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