A square is a regular polygon because it has 4 equal sides and 4 equal angles
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It is a unit centimetre square.
4 - without cutting the 1cm x 1cm squares.
13 x 9 = 117 square units.If a single square unit was 1cm x 1cm, then the answer to your question would be 117cm2
1in = 2.54cm (exactly) ⇒ 1cm = 1 ÷ 2.54 in ~= 0.394in 1cm2 = 1cm x 1cm ~= 0.394 in x 0.394 in ~= 0.155in2
3.14 square cm