Răspunsuri

2014-08-20T17:17:47+03:00
Ip^2=20^2+15^2
ip^2=400+225
ip^2=625
ip= radical 625
ip=25

unde ip= ipotenuza
^2 inseamna la puterea a doua
2014-08-20T17:18:19+03:00
ΔABC, mas<A=90

BC²=AB²+AC²=  20²+15² =400 +225=625  =>BC=25