67 cm
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If it's a square, then each side should be 3 cm, meaning perimeter is 12cm
Each side is: 16.65/3 = 5.55 cm Area is: 0.5*5.55*5.55*sin(60 degrees) = 13.34 square cm rounded
You would need two 3 cm squares and two 2 cm squares to get a total area of 35 sq cm. A 3 cm square has an area of 9 sq cm and a 2 cm square has an area of 4 sq cm.
There are 100 cm in 1 m. The area of a square is b x h. Therefore, this is how you do it: 100 cm x 3 m=300 cm (base x height) 300 cm x 300 cm = 90,000 cm
12 square cm