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Answer:
x=60
2x=120
2x+y= angle poq
120+y= 180 (angles on a straight line make an angle of 180)
y=180-120
y=60
now
when y=40
2x+y= angle POQ. (angles on a straight line make an angle of 180)
2x= 180-40
x= 140/2
x= 70
Step-by-step explanation:
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Answered by
1
Answer:
when x=60°, then y= 140°
when y=40°, then x=70°
Step-by-step explanation:
when x=60°
⇒2x+y=180° [linear pairs]
⇒(2)(20°)+y=180°
⇒40°+y=180°
⇒y=180°- 40°
⇒y=140°
When y=40°
⇒2x+y=180° [linear pairs]
⇒2x+40°=180°
⇒2x=180°- 40°
⇒2x=140°
⇒x=140/2°
⇒x=70°
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