Question

AJUTOOOOR...----- :')

Fie un triunghi ABC echilateral si Sabc=8√3 cm².
Aflati perimetrul lui ABC.

Multumesc! <3

Answer 1

aria tr echilateral =l²√3/4 (conform formulei invatate??)

8√3=l²√3/4

8=l²/4

32=l²

l²=32

l=√32=4√2

perim=3*l=3*4√2=12√2 cm

as simple as that!!