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17-12-2017
Mathematics

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Find value of the variables#7

Find value of the variables7 class=

Respuesta :

17-12-2017

because of exterior angles theorem, y=39+65, so y=104
x and y are a linear pair, so they add up to 180. x=180-104, x=76
all angles in a triangle add up to 180, so 21+104+z=180. therefore, z=55

y=104
x=76
z=55

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