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Answer fast....with explanation.I'll mark you as a brainliest .​

Answer»

ong>ANSWER:

Here ya go.

Step-by-step EXPLANATION:

Given, ∠COT = 60° and AB and CD are STRAIGHT lines intersecting at O.

           ∠COA+∠COB = 180°                             {LINEAR pair}

∠COA+∠COT+∠TOB = 180°

                  4b+60°+b = 180°

                      5b+60° = 180°

                              5b = 120°

                                b = 24°

∠AOD = ∠COB                                                 {VERTICALLY opposite angles}

      2c = 60°+24° = 84°

        c = 42°

∠COA = ∠BOD                                                {Vertically opposite angles}

4(24°) = a

       a = 96°

Hope this helps!


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