Question

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



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

Answer 1

60°

70°

65°

75°

Answer 2

70

Answer 3

how did you get 50?

Answer 4

70 i meant

Answer 5

but 40 wasnt an option

Answer 6

Sorry he is right it should be 40.

If arc ac has a measure of 140, that means it's internal angle is also 140. Splitting the two tangents into two horizontal triangles, according to your picture, Angle A and Angle B are 90 degrees. If A is 90, and your internal angle is 70 in the triangle, half angle ABC would be 20. So angle abc is 40.

Answer 7

idk what i should put