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The diagram shows triangle ABC.  Work out the sizes of angles x, y, and z.

 

 Mar 13, 2021
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*** EDIT ***

 

x + 110   = 180       (straight line)

x = 70 degrees 

 

Bottom triangle        x + z + 90 = 180

                                70 + z + 90 = 180

                                       z = 20 degrees

Top triangle   (angles sum to 180)

180 = 110 + 40 + y

   y = 30 degrees

 Mar 13, 2021
edited by ElectricPavlov  Mar 13, 2021

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