Common factor of 54z^3 and 18z and 36z^2

What dimensions can créate more than one triangle ?

In the diagram of circle o, what is the measure of zabc?

*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