Odpowiedź:
AE = EB
AE = AB/2 = 24/2 = 12 CM
AD^2 = AE^2 + DE^2
13^2 = 12^2 + DE^2
169 = 144 + DE^2
DE^2 = 169 - 144 = 25 CM^2
DE = [tex]\sqrt{25}[/tex] = 5 CM
Pole = AB * DE = 24 * 5 = 120 cm^2
