ex1
UH/UM = UT/UL ⇔ UL x UH = UM x UT ⇒ UL = UM x UT/UH = 9.9 x 3/2.2 = 13.5 cm
UL = 13.5 cm
UH/UM = TH/ML ⇔ UH x ML = TH x UM ⇒ TH = UH x ML/UM = 2.2 x 9/9.9 = 2 cm
TH = 2 cm
ex2
FM/FN = KM/LN ⇔ FM x LN = KM x FN ⇒ LN = KM x FN/FM = 1.5 x 5/3 = 2.5 cm
LN = 2.5 cm
PT/PN = ST/LN ⇔ NP x ST = LN x PT ⇒ NP = LN x PT/ST = 2.5 x 0.8/2 = 1 cm
NP = 1 cm
ex3
AH = AC/2 = 232/2 = 116 m
BH'/BH = S'H'/SH ⇔ SH x BH' = BH x S'H'⇒ SH = BH x S'H'/BH' = 189 x 1/1.3 = 145.38 cm ≈≈ 145 m
BH = AB + AH = 73 + 116 = 189 m
ex4
TP/TB = PO/BS ⇔ TP x BS = TB x PO ⇒ BS = TB x PO/TP = 1.4 x 113.6/1.6 = 99.4 m
TB = 1.6 + 112 = 113.60 m
