Răspuns :
ap = 6cm
ap=l√3/2
ap=6
l√3/2=6
l=2*6/√3
l=12/√3
l=12√3/3
l=4√3
A=l²√3/4= (4√3)² ·√3/4= 48√3/4= 12√3
R= 4√3·4√3·4√3/12√3
=4√3 *4√3/3
=16*3/3
=16
ap=l√3/2
ap=6
l√3/2=6
l=2*6/√3
l=12/√3
l=12√3/3
l=4√3
A=l²√3/4= (4√3)² ·√3/4= 48√3/4= 12√3
R= 4√3·4√3·4√3/12√3
=4√3 *4√3/3
=16*3/3
=16
Intr-un triunghi echilateral avem:
Apotema = Raza / 2
=> Raza cercului circumscris = 2 × apotema = 2 × 6 = 12 cm
Apotema = Raza / 2
=> Raza cercului circumscris = 2 × apotema = 2 × 6 = 12 cm