Question

With full explanation plz​

Answer 1

Step-by-step explanation:

See since PQ||RS and TR is their transversal,

Therefore,

ANGLE PTR = ANGLE TRU [ ALT. INT. ANGLE]

NOW,

SINCE PQ||RS AND TR||QU,

THEREFORE, TRU + QUR = 180° [Co int. angle]

42° + QUR = 180° [TRU = 42°, Given]

SO, AFTER SOLVING, WE GET,

QUR = 180° - 42°

= 138°

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