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Mathematics
Mathematics
Problem
In quadrilateral
E
F
G
H
EFGH
E
F
G
H
, the opposite angles are
∠
E
=
(
4
x
+
20
)
∘
\angle E = (4x + 20)^\circ
∠
E
=
(
4
x
+
20
)
∘
and
∠
G
=
(
7
x
−
10
)
∘
\angle G = (7x - 10)^\circ
∠
G
=
(
7
x
−
10
)
∘
. For what value of
x
x
x
will
E
F
G
H
EFGH
E
F
G
H
be a parallelogram?
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