c₁/c₂=4/3 =>c₁=4c₂/3
c₁²+c₂²=i² (t.Pitagora)
16c₂²/9 + c₂² = 6400 |x9
16c₂²+9c₂²=6400x9
25c₂²=6400x9 |:25
c₂²=64x4x9
=>c₂=8x2x3=48 cm
c₁=64 cm
t.catetei =>c₁²=proiectia c₁ x ipotenuza
4096=proiectia c₁ x 80 =>proiectia c₁=51,2 =>proiectia c₂=28,8
t.inaltimii =>h²=51,2 x 28,8
h²=1474,56 =>h=38,4
