Respuesta :

first one is 45 and the second is 9.6

Answer: w= 9.6cm

Step-by-step explanation:

By the figure two triangles are similar

so 16/16+4 = w/12

2DW= 16 x 12

W= 16 x 12/20 = 9.6 cm

Two triangles are similar and the corresponding sides are proportional.

Hope this helped! <3

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