Question

calculati aria unui triunghi ABC de inaltime AD,stiind ca: BC = 4 cm,AD = 6 cm

Answer 1

$A_{ABC}= \frac{AD \cdot BC}{2}= \frac{6 \cdot 4}{2}=12~(cm^2).$

Answer 2

AΔ=b·h/2
AΔ=4cm·6cm/2=24cm/2=12cm²⇒aria triunghiului ABC;