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Mathematics
Mathematics
Problem
At the intersection of two lines, one angle measures
(
4
x
−
10
)
∘
(4x - 10)^\circ
(
4
x
−
10
)
∘
and the angle vertically opposite to it measures
(
2
x
+
50
)
∘
(2x + 50)^\circ
(
2
x
+
50
)
∘
. Calculate their common measure. a)
90
∘
90^\circ
9
0
∘
b)
110
∘
110^\circ
11
0
∘
c)
70
∘
70^\circ
7
0
∘
d)
100
∘
100^\circ
10
0
∘
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