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Mekhanik [1.2K]
3 years ago
14

Given that two tangent lines are constructed from the shared point A outside a circle with the center O and points of tangency B

and C, what is the measure of ∠OAB if ∠OAC measures 30°?
Mathematics
2 answers:
vlabodo [156]3 years ago
8 0

Answer:

OAC =30

Step-by-step explanation:

Given that for a circle there are two tangents at points of contacts B and C meet at A

The centre of the circle is O.

By tangents theorem for circles, OAB and OAC are congruent

Hence angle OAB = angle OAC

Angle OAB is given to be 30 degrees

Hence angle OAC is equal to 30 degrees

ololo11 [35]3 years ago
5 0
∠OAB = ∠OAC

∠OAB = 30°
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