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GrogVix [38]
3 years ago
13

Please help me please

Mathematics
1 answer:
LiRa [457]3 years ago
3 0

Answer:

3

Step-by-step explanation:

if the shapes are similar then the measures are proportional:

4/12 = 1/d cross multiply expressions

4d = 12 divide both sides by 4

d = 3

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