Răspuns :
Răspuns:
De||Fc => <EFC=45°
Ef|| As => <ADE=45°
<BFE=180°- 45°=135°
DE||BF si DB||EF=> BDEF = paralrlogram => <ABC = 45°
<ACB = 180°-40°-45°=95°
Răspuns:
De||Fc => <EFC=45°
Ef|| As => <ADE=45°
<BFE=180°- 45°=135°
DE||BF si DB||EF=> BDEF = paralrlogram => <ABC = 45°
<ACB = 180°-40°-45°=95°