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PLSS
URGENT
DAU COROANA ​


PLSSURGENT DAU COROANA class=

Răspuns :

Răspuns:

Explicație pas cu pas:

a)56+37+127+AOB =360°

AOB =360-56-37-127 =140°

b)

30+x+3x+2x=360°

6x=360-30 =330

x=330:6 =55

3x=3*55 =165°

2x=2*55=110°

c)

x+ x+30 +2x+x-15+145 =360°

5x =360-30+15-145 =200

x=200:5 =40°

x+30 =40+30=70°

2x =2*40 =80°

x-15 =40-15 =25°