Calculate the area of the equilateral triangle using the formula for area of a regular polygon, and compare it to Bianca’s answer.

Question

Revolt · Accepted Answer

✔ 2.9; The apothem, rounded to the nearest tenth, is units.: 2.9; The perimeter of the equilateral triangle is units.: 30; Therefore, the area of the equilateral triangle is , or approximately 43.5 units2.: 1/2(2.9)(30); The calculated areas are .: the same, despite using different formulas

Area of Regular Polygons

Calculate the area of the equilateral triangle using the formula for area of a regular polygon, and compare it to Bianca’s answer.

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