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Mathematics
Mathematics
Problem
In
△
P
Q
R
\triangle PQR
△
P
QR
,
P
Q
=
P
R
PQ = PR
P
Q
=
P
R
. If
∠
Q
=
(
3
x
+
20
)
∘
\angle Q = (3x + 20)^\circ
∠
Q
=
(
3
x
+
20
)
∘
and
∠
R
=
(
5
x
−
4
)
∘
\angle R = (5x - 4)^\circ
∠
R
=
(
5
x
−
4
)
∘
, find the value of
x
x
x
. a)
14
14
14
b)
8
8
8
c)
12
12
12
d)
13
13
13
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