Question

un triunghi isoscel are baza 12cm, si perimetru 32cm .calculati lungimile celorlate laturi

Answer 1

AB=AC = (32-12):2 = 20 :2 - 10 cm fiecare

Answer 2

$P_{t} =32cm$
$c=12cm$
$a+b= P_{t} -c$
$a+b=32-12=20$
$a=b=(a+b):2$
$a=b=20:2=10cm$