3 years ago

HELP AGAIN!!!!!!!!

Mathematics

1 answer:

Oduvanchick [21]3 years ago

5 0

Answer:

Step-by-step explanation:

Partition the figure by extending the sides of the ``middle'' square as shown at the right. Each original square contains four $3 \times 3$ small squares. The shaded figure consists of ten $3 \times 3$ squares, so its area is $10 \times 9 = \boxed{90\text{ square

units}}$.

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