Question

P treugolinika=60 cm odna storona na 8 cm dlinee storon naidite storoni treugolinika

Answer 1

xcm;  xcm; (x+8)cm-storoni
x+x+x+8=60
3x=60-8; 3x=52;  x=52/3
52/3 cm; 52/3 cm; 52/3 +8=76/3cm