▪ a) x = AC ; AC^2 = CD×BC = 80 => AC= x= 4radical din5 cm
[folosesti teorema catetei]
▪ b) x = BC; AB^2 = BD×BC => 12^2 =9x
144 = 9x
x = BC = 144/9 = 16cm
[folosesti teorema catetei]
▪ c) AD=x ; AD^2 = CD×BD = 9 × 16 => AD =12cm = x
[folosesti teorema inaltimii]
▪ d) x = BD; AD^2 =BD×CD
144 = 6x
48 = 2x
x = 24cm = BD
[folosesti teorema inaltimii]
▪ e) x = BC ; BC^2 = AB^2 + AC^2 = 64+225=289; BC = \/289 => BC= 17cm = x
[folosesti teorema lui pitagora]
▪ f) x = AC; AC^2 = BC^2 - AB^2 = (34-30)(34+30)=74 => AC = \/74 = x
[folosesti teorema lui pitagora]
Sper ca te am ajutat, ordinea e :
a b c
d e f
:)
daca ai nevoie de mai multe detalii, scrie in comentarii
