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Tania9999
a fost răspuns

am mai pus odata aceeasi chestie,dar nu era clara poza

Am Mai Pus Odata Aceeasi Chestiedar Nu Era Clara Poza class=

Răspuns :

FEC=60grade

ABC=60grade


ACB=60grade


EFC=60grade


ADE=60grade


BFE=110grade
Capsunica35
m∡FEC=60°
m∡ABC=60°
m∡ACB==180-(60+60)=180-120=60°
m∡EFC=60°
m∡ADE=60°
m∡BFE=(360-2*70)/2=(360-1400/2=220/2=110