Răspunsuri

2014-09-09T17:42:22+03:00
Δ dreptunghic isoscel 

ip²=2c²
a) c= 16cm 
ip²= 2·16²
ip²=2·256
ip=√512= 16√2 cm 

b)  c= 10√2 dm  
ip²=2·c²
ip²= 2·200
ip=√400= 20dm 

c) c= a√3 m 
ip²= 2·(a√3)²
ip²=2·3a²
ip²= 6a² ⇒ip=√6a²= a√6 m