Question

Fie tringhiul ABC cu m(<C)=90 grade   :  

 

a)Daca AB=20cm si AC=16cm,calculati BC

b)Daca AB=40cm si AB=41cm,calculati AC

Answer 1

a) In ΔABC aplicam Teorema lui Pitagora=>
$AB^{2}$+ $AC^{2}$=BC²
400+256=BC²
BC=$\sqrt{656}$
BC=$\sqrt{656}$