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  • 21-08-2017
  • Mathematics
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Find value of unknown angle(s) and state reason/theorem why

Find value of unknown angles and state reasontheorem why class=

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twvogels
twvogels twvogels
  • 21-08-2017
y=90° by inspection
w=180-(50+y)=160-(50+90)=40° 
x=180-(w+x)=180-(40+97)=43° 
z=180-(x+90)=180-(43+90)=47° 
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