Question

Ariile triunghiurilor.

Answer 1

Aria triunghiurilor oarecare=lungime*inaltime/2
Aria triunghiurilor echilaterale=l²√3/4

Answer 2

$\displaystyle Triunghi~oarecare: \frac{b \cdot h}{2} \\ Triunghi~dreptunghic : \frac{c_1 \cdot c_2}{2} \\ Triunghi ~echilateral : \frac{l ^ 2 \sqrt{3} }{4}$