Question

Ajutati-ma! Va rog! :* Dau coroana!

Answer 1

1)m (A)+m (B)+m (C)=180<br />90+m (B)+60=180<br />m (B)=180-90-60<br />m (B)=30 rezulta 2AC=BC <br />BC=2×3 <br />BC=6<br />m (A)=90 rezulta BC×BC=AB×AB+AC×AC<br />2AC×2AC=AB×AB+AC×AC<br />2×3×2×3=AB×AB+3×3<br />36=AB×AB+9<br />AB×AB=36-9<br />AB×AB=27<br />AB=3 radical din3<br />m (C)=60<br />m (B)=30 2)m (A)+m (B)+m (C)=180 90+m (B)+45=180 m (B)=180-90-45 m (B)=45 m (C)=45 rezulta ABC isoscel dreptunghic rezulta AC=AB m (A)=90 rezulta BC×BC=AC×AC+AB×AB 14×14=AC×AC+AC×AC 196=2×AC×AC AC×AC=196÷2 AC×AC=98 AC=7 radical din 2 AC=AB=7 radical din 2 Ma-s bucura daca ai da coroana