Question

Am nevoie urgenta de ex. 54! Dau coroana

Answer 1

x-cateta
y-cateta
i-ipotenuza
x/y=5/12
x=5y/12
i²=y²+25y²/144
i²=169y²/144
i=13y/12
P=x+y+i
60=5y/12+y+13y/12
60=30y/12
30y=720
y=24-o cateta
x=10-o cateta
i=26-ipotenuza
fie ABC triunghiul dreptunghic A=90°
AB=24
AC=10
BC=26
AD⊥BC
AB²=BC·BD
576=26·BD
BD=576/26
AC²=CD·BC
100=CD·26
CD=100/26
AD²=BD·CD=576/26·100/26
AD=240/26=120/13