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aflati inaltimile triunghiului cu laturile de 8 cm, 12cmm,16cm.


Răspuns :

S=√p(p-a)(p-b)(p-c)
p=(8+12+16)/2=36/2=18
S=√18(18-8)(18-12)(18-16)=√18×10×6×2=√2160=12√15
S=8*h/2=12√15
h=12√15*2/8=3√15

S=12*h/2=12√15
h=12√15*2/12=2√15

S=16*h/2=12√15
h=12√15*2/16=(24√15)/16=1,5√15