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Answer :

Answer:

12

Step-by-step explanation:

The two shapes are similar and in a ratio of 4/1.

This is because, for matching sides of the quadrilaterals:

56 / 14 = 4

40 / 10 = 4

56 / 14 = 4

Therefore, 3  * 4 = 12 (The matching side in the larger shape)