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°

A

Step-by-step 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

answer: ok

step-by-step explanation:

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: