Find the values of unknown 'x' and 'y' if Q=50 and R=120
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Step-by-step explanation:
By using external angle property
x+50
o
=120
o
∴x=70
o
Sum of all angles of a Δle is 180
o
50
o
+x+y=180
o
50
o
+70
o
+y=180
o
∴y=60
o
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