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l give only first answer
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1)
finding y,
Angle E + Angle D + Angle y = 180° ( Angle sum property)
40 + 45 + y = 180
85 + y = 180
y= 180 -85 = 95°
finding z,
Let's take Angle y and Angle z as one single Angle
Because AB | | DE, we can say Angle y + angle z + Angle D = 180 (Co interior angles)
95 + z + 45 = 180
140 + z = 180
z = 180 - 140 = 40°
finding x,
Angles y + z + x = 180 (Linear Pair)
95 + 40 + x = 180
135 + x = 180
x =180-135= 45°
2)
finding y,
Angle P + Angle y = 180 (Co interior angles)
105 + y = 180
y= 180 - 105 = 95°
finding x,
60 + x + y = 180 (Linear pair)
60 + 95 + x = 180
155 + x = 180
x = 180 - 155 = 25°
finding z,
60+ z = 180 ( Co interior angles)
z = 180 - 60 = 120°
phew
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