Răspunsuri

2014-05-16T15:07:05+03:00
H= l√3 :2 = 10√2:2= 5√3 cm
A= l²√3 : 4 = 10²√3 :4= 100√3 : 4 = 25√3 cm
2014-05-16T15:07:16+03:00
Inaltimea:

Aplicam Pitagora

10^2=h^2+5^2
100=h^2+25
h^2=100-25
h^2=75
h=5 radical din 3

Aria= baza8h/2
Aria=10*5 radical din 3/2
Aria=50 radical din 3/2
Aria=25 radical din 3