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Answer:
That's your answer
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Answer:
126
Step-by-step explanation:
1) а:в=2:3 , в=1,5а.
2) ∠POY=90 значит a+в=90° , a+1,5а=90° , 2,5а=90° ,а=36° ⇒ в=1,5*36°=54°.
3) в+с=180 ° 54°+с=180° ⇒ с=180° - 54°=126°