In the adjacent figure AB//CD, then find x value.
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Step-by-step explanation:
Given that AB∣∣CD
Taking PQ as transversal,
∠RQP=∠QPC=80∘
Now,
∠QPC+2x+3x=180∘
80∘ +5x=180∘
5x=130∘
x=26∘
now, applying angle sum property in triangle PQR,
2x+y+∠PQR=180∘
2×26+80∘ +y=180∘
y=48∘
now,
z=2x+80∘
(An exterior angle of a triangle is equal to the sum of the opposite interior angles)
z=2×26∘ +80∘ =52∘ +80∘ =132∘
z=132∘
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