Question

Va rog urgent! Ex 3,4,7 dau 15 pcte+multumesc ajutatima!

Answer 1

3. m(<ADB)=180°-(75°+65°)=180°-140°=40°

m(<ADB)=40°

m(<BDC)=180°-(110°+30°)=180°-140°=40°

m(<BDC)=40°

4. m(<A)+m(<B)+m(<C)=180°

m(<A)=90°

m(<B)=m(<C)=(180°-90°)/2=90°/2=45°