Răspunsuri

2014-05-13T11:16:52+03:00
A, b,c - laturi
a=b
c= baza

a+b+c=128
a=5k
b=6k

5k+5k+6k=128
16k=128
k=8

a=5*8=40
b=40
c=6*8
c=48

Aplicam Pitagora pt a avea inaltimea
ipotenuza=40
o cateta=48:2=24
H=?
40^2=24^2+h^2
1600=576+h^2
h^2=1024
h=32

Aria= baza*h/2
Aria=48*32/2
Aria=768
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