Estimate the sum or difference use the benchmarks 0/2 + 1 23/40 - 11/30

Guys i really need or i have to stay late up night

What is the measure of angle tvu shown in the diagram below

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer