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

Question

2 years ago

14

and C, what is the measure of ∠OAB if ∠OAC measures 30°?

2 answers:

vlabodo [156] · Answer 1 · 2022-08-17T22:18:01+03:00

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] · Answer 2 · 2022-08-17T20:03:38+03:00

5 0

∠OAB = ∠OAC

∠OAB = 30°