Respuesta :

lalloronamishijos

Answer:

21 centimeters is the answer

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alinateow
We can start off by finding the area of the larger triangle

[Formula : 1/2 x Base x height]

1/2 x 6 x 6 = 18

Now we can find the area of 6 small triangles

1/2 x 1 x 1 = 1/2 ( 1 small triangle )

1/2 x 6 = 3 ( 6 small triangles )

Total area = large triangle + 6 small triangles

18 + 6 = 24 cm square

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