а=13, в=14, с=15. Найти длины всех 3 высот

S = √(p(p-a)(p-b)(p-c))p= (a+b+c)/2а=13, в=14, с=15p=21S=√(21*8*7*6)= 7*3*4=84S=1/2 ah h=2S/ah1=2S/a = 168/13 = 12 12/13h2=2S/b = 168/14 = 12 h3=2S/c = 168/15 = 11 3/15 = 11 1/4 = 11,25