Question

calculati perimetrul unui triunghistiind ca intre lungimile A,B,C a laturilor sale au loc relatiile 2xA=3xB=5xC si B-C= 4 cm

rapid dau coroana

Answer 1

2a=3b=5c=k

a=k/2

b=k/3

c=k/5

k/3 - k/5 = 4

5k-3k=60

2k=60

k=30

=>a=15 ; b=10 ; c=6

P=31 cm