Question

Lungimile laturilor unui triunghi sunt exprimate in metri prin nr naturale consecutive. Calculeaza perimetrul triunghiului stiind ca suma a doua laturi este 224 cm

Answer 1

a, b, c - laturi
a=a
b=a+1
c=a+2

a+b+c=?

a+c=224
a+a+2=224
2a=224-2
2a=222
a=111
b=112
c=113
P=111+112+113=336

Sau
a+b=224
a+a+1=224
2a=223
a=111.5
b=112.5
c=113.5
P=111.5+112.5+113.5=337.5

Sau
b+c=224
a+1+a+2=224
2a+3=224
2a=221
a=110.5
b=111.5
c=112.5
P=110.5+111.5+112.5=334.5