Question

PLEASE HELP

In the diagram below, AB and BC are tangent to O. Which expression gives the measure ∠ABC?

A. 1/2(240° - 120°)
B. 1/2(240° + 120°)
C. 240° + 120°
D. 240° - 120°

Answer 1

it is A

Explanation:

i just did the test l m a o

Answer 2

A

Explanation:

The exact summary for the angle between two tangents (or a tangent and a secant) is 1/2 the difference between the two intercepted arcs.

The two intercepted arcs are 240 and 120 (givens)

So the angle between the two tangents is 1/2 ( 240 - 120) which is A