Răspunsuri

2014-04-24T17:50:35+03:00
In triunghiul ΔBAC, mA=90⇒Pitagora
BC²=BA²+AC²
100=64+AC²
AC=√36=6
AD=AB*AC/BC( th inaltimii)

AD=6*6/10=3,6
7 4 7