Pls help I need it ​

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

*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

Ithink i know it but i want to be sure so can you me out ?