Round 223 to the nearest ten

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

*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

Find the interior angle of a regular polygon which has 6 sides