a) Teorema catetei
AB² = BD×BC => BC = AB²/BD = 256/8 = 32 cm
b)
DC = BC - BD = 32 - 8 = 24 cm
c) Teorema catetei
AC = √DC×BC = √24×32 = √768 = √2⁸×3 = 2⁴√3 = 16√3 cm
d) Teorema inaltimii
AD = √BD×DC = √8×24 = √192 = √2⁶×3 = 2³√3 = 8√3 cm
e)
sinC = AB/BC = 16/32 = 1/2 => sinC = 1/2 => ∡C = 30°