Question

plzz help me in question no. 13 and 14.
Plzz give right answer.
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Answer 1

Answer:

Step-by-step explanation:

13) <ACB =

     30 + 30 + z =180

             90 + z = 180

                      z = 180 - 90

                      z = 90

       x = 180 - 90

       x = 90

       y = x

       y = 90