VA ROG AM NEVOIE DE AJUTOR!!!
DAU COROANĂ!!!
ex 8 si 12 urgent
![VA ROG AM NEVOIE DE AJUTORDAU COROANĂex 8 Si 12 Urgent class=](https://ro-static.z-dn.net/files/da1/6bea56b53e8821feee6ae02c45f547bb.jpg)
Răspuns:
a.<AOC==<DOB=30°=><AOD=<COB=(360-30-30):2=300:2=150
b.90+2x=180°|-90
2x=90|:2
x=45°
c.6x-60+2x=180°|+60
8x=240|:8
x=30
d.2x+x/4=180=>2,25x=180|:2,25
x=80°