Question

Vreau desen si rezolvarea completa,dau coroana!

Answer 1

a)A=lm×h=10×5=50 b)lm=B+b supra2 10=B+b supra2 B+b=10×2=20 B=(B+b)-4 B=20-4=16cm b=20-B b=20-16=4cm c)B+E+C=180 B=180-(E+C)=180-(90-46)=45 C=B=45reultaBe=EC=5cm DE=DC-EC DE=16-5=11cm A=C1×C2 supra2 A=De×BE supra2 A=11×5 supra2 A=55 supra2 A=27,5 cm patrati