Question

please solve it...........

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Answer 1

Answer:

170° (sruo) total of angle

Answer 2

Answer:

Angle YSR = 70 degrees

Step-by-step explanation:

/_RUO = 120° (given)

/_RUO = /_RYO = 120° (opposite angles of a parallelogram are equal)

/_RYO + /_RYS = 180° (Linear pair)

120° + /_ RYS = 180°

/_RYS = 180° - 120°

/_RYS = 60°

In ∆ RSY :

/_ YSR + /_SRY + /_RYS = 180° (by ASP of a triangle)

/_YSR + 50° + 60° = 180°

/_ YSR + 110° = 180°

/_ YSR = 180° - 110°

/_YSR = 70°.

So, /_YSR = 70°.

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