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7.) Dik:
Tinggi Tiara (foto) = Ta f =5,2 cm
Tinggi ibu Tiara (foto) = Tb f = 8,5 cm
Tinggi Tiara = Ta = 104 cm

Dit: Tb = ...?

Jawab: Ta f/Ta = Tb f/Tb
5,2/104 = 8,5/Tb
5,2 Tb = 884
Tb = 170 cm (B.)

8.) DA/PQ = BC/RS
8/6 = BC/9
6BC = 72
BC = 12 cm (D.)