Question

pls.pls.pls.pls acest ex

Answer 1

m(AOB)=180°
BOC=DOA (sunt opuse la varf) => DOA=x°
PO -> bisectoarea lui DOA => POD=AOP=x°:2
AOB=AOP+POD+DOB => 180°=(x°:2)+(x°:2)+3x°=x°+3x°=4x° => x=180°:4 => x=45°
POB=POD+DOB => POB=x°:2+3x => POB= 45°:2+45×3 => POB= 22,5°+135° => POB=157,5°

Answer 2

Unde nu se intelege imi spui