In the given figure , AB||CD. Transversal L cuts AB and CD at P and Q respectively. Transversal m cuts AB and CD at R and S respectively. Find the value of x and also the measures of angle PQC and angle RSD.
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From the figure, angle PRS = 4x
⠀⠀⠀⠀⠀⠀⠀[Vertically opposite angles]
and 4x + 5x = 180
⠀⠀[Co-interior angles are supplementary]
9x = 180
x = 180/9
x = 20°
angle PQC = 3x
[Corresponding angles axiom, AB||CD]
angle PQC = (3 x 20)° = 60°
and RSD = 4x
⠀ [Coresponding angles axiom, AB||CD]
angle RSD = (4 x 20°) = 80°
x = 20°,
angle PQC = 60° ,
angle RSD = 80°
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