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Mathematics
Mathematics
Problem
Two tangents
P
A
PA
P
A
and
P
B
PB
P
B
are drawn from an external point
P
P
P
to a circle with center
O
O
O
. If the angle between the tangents is
70
∘
70^{\circ}
7
0
∘
, determine the measure of
∠
O
A
B
\angle OAB
∠
O
A
B
.
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