Question

calculati ariile triunghiurilor urmatoare : h = 8cm ,L = 1,2 dm

Answer 1

Hmm..presupun ca l-baza.
1,2dm=12 cm

$S= \frac{b*h}{2}= \frac{8+12}2}= \frac{20}{2}=10 cm^{2}$