6. Find the unknown angles from the given figure:
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y= 90 a=45 c=55 b=80
Step-by-step explanation:
90° + y = 180 (LINEAR PAIR)
y=90
Angle 45 = a (Alternate angles)
Angle 55 = c ( " )
a + b+ c = 180
45 + 55 + b = 180
b= 80
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