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2) the value of x=130
4) the value of x=35
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Answer:
4)First x= 75 degrees
2)Second x=120 degrees
Explanation :
(4), In figure 1
Ab and cd are parallel lines
Therefore
Angle BAD= Angle CDE(alternate interior angle property of parallel lines)
In triangle CDE by angle sum property
C+d+e=180
45+60+e=180
105+e=180
E=75.
In figure 2
(2)Angle dce =angle b+a(exterior angle is equal to sum of opp interior angles)
=40+30
=70
Angle ecd + angle cde = angle aed(exterior angle properties)
70+50=x
X=120 degrees
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