Question

Calculați aria triunghiului ABC, știind că:
a) AB = AC = BC = 6 cm;
b) AB = AC = 5 cm, BC = 6 cm;
c) AB=4 cm, AC = 3 cm, BC = 6 cm;
d) AB = 12 cm, AC = 5 cm, BC = 13 cm;
e) AB = 4 cm, AC = 6 cm, m( <BAC) = 90°;
f) AB = 8 cm, BC = 10 cm, m( <BAC)= 90°;
g) AB = 8 cm, AC =6 cm, m( <BAC)= 30°.​

Answer 1

a) Aria=6x6:2=36:2=18

b) Aria=4x6:2=24:2=12

c) Aria=4x6:2=24:2=12

d) Aria=12x13:2=156:2=78

e) Aria=4x8,5:2=34:2=17

f) Aria=8x10:2=80:2=40

g) Aria=8x4:2=32:2=16