Question

The circle shown below has AB and BC as its tangents:

AB and BC are two tangents to a circle which intersect outside the circle at a point B.

If the measure of arc AC is 140°, what is the measure of angle ABC?

60°

40°

70°

50°

Answer 1

@ganeshie8 @phi

Answer 2

@Ashleyisakitty

Answer 3

i'm guessing its 40 ?

Answer 4

it is.
\[\frac12\left( 220-140 \right)\]

Answer 5

so im right :) 40 .... thank you so much ! :3