Odpowiedź:
Wzór do obliczenia: P = [tex]\sqrt{p(p - a)(p-b)(p-c)}[/tex], gdzie p = [tex]\frac{a+b+c}{2}[/tex].
p = [tex]\frac{8+12+12}{2}[/tex] = [tex]\frac{32}{2}[/tex] = 16
P = [tex]\sqrt{16(16-8)(16 - 12)(16-12)}[/tex] = [tex]\sqrt{16x8x4x4}[/tex] = [tex]\sqrt{2048}[/tex] = 32[tex]\sqrt{2}[/tex]
