jasmac15
jasmac15
28-05-2018
Mathematics
contestada
Please help me with this question
Respuesta :
sqdancefan
sqdancefan
29-05-2018
All the triangles are similar, so you have ...
(short side)/(long side) = 3/(CD) = (CD)/12
Multiplying by 12(CD) gives
(CD)² = 3*12 = 36
CD = √36 = 6
The appropriate choice is ...
A) 6
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