Question

In triunghiul ABC oarecare,se duc:AD⊥BC,D∈(BC) si BE⊥AC,E ∈ (AC).
a.Daca AC=15 cm,BC=9 cm,AD=10 CM,calculati A ΔABC si BE
b.Daca A ΔABC=45,5cm²,AD=7 cm,AC=13 cm,calculati BC,BE

Answer 1

ARIA LUI ABC=B*H/2=BC*AD/2=9*10/2=45 2) ARIA ABC=BC*H/2=>45,5=BC*AD/2=> 45,5=BC*7/2=>BC=2*45,5/7=13