An equilateral triangle has a perimeter of 15x +18. What is the length of each side of the triangle?
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P = 3 a
a = P / 3 = ( 15 x + 18 ) / 3 = 5 x + 6
To find the length of each side of an equilateral triangle given its perimeter, you need to divide the perimeter by 3 since all sides of an equilateral triangle are equal.
Let's use the given equation:
Perimeter of the triangle = 15x + 18
Divide the perimeter by 3:
(15x + 18) ÷ 3
To simplify the equation further, you can distribute the division:
15x ÷ 3 + 18 ÷ 3
Simplifying the equation gives us:
5x + 6
Therefore, each side of the equilateral triangle has a length of 5x + 6.