Use the following figure and information to complete the proof. Given: m∠4=m∠2m∠5=m∠3m∠DBE=180∘ Prove: m∠1+m∠2+m∠3=180∘

Use the following figure and information to complete the proof Given m4m2m5m3mDBE180 Prove m1m2m3180 class=