Question

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1 I will solve already
$= side \times side \\ = 3.5 \times 3.5 \\ = 12.25$
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Answer 1

Answer:

Your answers are in the attachments.

Step-by-step explanation:

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Answer 2

Answer:

Here's your answer mate

1. Area= 12.25cm² , Perimeter= 14cm
2. Side= 20/4= 5cm , Area= 25cm²
3. Side= 16^2= 4cm , Perimeter= 4*4cm