given AB||CD then find the following giving reason. If ∠1=(120−x)o and ∠4=54o Then find the measured of ∠1 and ∠5 where ∠5=5xo.
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Solution
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From the figure ∠1+∠4=180
Given ∠1=120−x∠4=54
120−x+54=180
x=174−180=−6
∠1=120−(−6)=126°
Given AB∥CD
∴∠1=∠5
∠5=126°
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