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EdinaCecilia
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Exercitile:2,3.
dau coroana + multumesc + ma abonez
Va rog!!!


Exercitile23dau Coroana Multumesc Ma AbonezVa Rog class=

Răspuns :

Chris02Junior
2.
 m(∡AOD)=180°-36°=144°
m(AOB)=180-BOC-COD-36=180-aob-2aob-36⇒4m(AOB)=180-36=144⇒m(∡AOB)=m(∡DOE)

3.
  Fie m(∡AOC)=x ⇒ m(∡COD)=2x ⇒ m(∡DOE)=3x ⇒ x+2x+3x=90° ⇒ 6x=90° ⇒ x = 90:6= 15°
m(∡AOC)=15°
m(∡COD)=30°
m(∡DOE)=45°

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