Răspuns :
Raspuns : 21 cm
AC=8 cm
BC=3/4 * AC => 3/4*8 => AC=6 cm
AB = 1/2 * (AC+BC) => 1/2*(8+6) => 1/2*14 => AB=7 cm
PΔABC = AB + AC + BC = 7+8+6 => PΔABC=21 cm
Raspuns : 21 cm
AC=8 cm
BC=3/4 * AC => 3/4*8 => AC=6 cm
AB = 1/2 * (AC+BC) => 1/2*(8+6) => 1/2*14 => AB=7 cm
PΔABC = AB + AC + BC = 7+8+6 => PΔABC=21 cm