Question

A,G,H va rog repedeee

Answer 1

$a)Aria\ unui\ triughi\ este\\\\A=\frac{l*h}{2}=\frac{16*6}{2}=\frac{96}{2}=48cm^2\\\\l=lungimea\ unei\ laturi\\h=inaltimea\ corespunzatoare\ acelei\ laturi\\l=1,6dm=16cm\\\\g)Aria\ unui\ trapez\\A=\frac{(b+B)*h}{2}=l_m*h=6*4=24cm^2\\\\b=baza\ mica\\B=baza\ mare\\h=inaltimea\ trapezului\\l_m=linia\ mijlocie=\frac{b+B}{2}\\\\h)Aria\ unui\ triunghi\ dreptunghic\ isoscel\\Intr-un\ triunghi\ dreptunghic\ isoscel\ inaltimea\ este\ jumatate\ din\ ipotenuza,\ h=2,6:2=1,3$$A=\frac{b*h}{2}=\frac{1,3*2,6}{2}=1,3*1,3=1,69cm^2$