plxxx do only second part with step by step explanation and full method.....
plxx do only second parttttttt
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I hope it help you..........
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Answer:
80°
Step-by-step explanation:
Total Sum of angles is = 360°
∴ 160°+70°+50°+x° = 360°
⇒ x = 360°-280°
x = 80°
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