u do 3*14(the side length.) so the perimeter equals 42. then u take half of 14 (which is 7) so then ur apothem equals 7. so u do A= 1/2* 7*42 = 147
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30
15.2 inches.
12
Area of Equilateral Triangle A= S2 * (Root 3)/4, where A= Area of the triangle S= Side of the triangle.
multiply the x-length and the y-length and 2