This depends on the given information in the problem. All sides are equal, so if you can find one, you will know all the sides.
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The perimeter of an equilateral triangle is calculated by multiplying the length of one side by 3, as all three sides of an equilateral triangle are equal in length. Therefore, if the length of one side of the equilateral triangle is represented by "s," the perimeter would be 3s. This is because there are three sides in total that need to be added together to find the perimeter of the equilateral triangle.
An equilateral triangle has three sides of exactly the same length. Therefore, if one side of the triangle is equal to 12 yards, then the perimeter of the triangle is equal to 12 x 3 = 36 yards.
It is called and equilateral triangle. You can find more information about equilateral polygons here: http://www.answers.com/equilateral
To get the area of an equilateral triangle, you just need to know the length of one side. Multiply the length of one side by the square root of three and then divide the product by four, and you will get the area of the triangle.
Perimeter of Triangle = a + b + cso if you have an equilateral with say 4 cm sides you would add4+4+4=12cmJust add up its 3 equal sides