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'' the length of one side of an equilateral is 3x+2. its perimeter is 60 centimeters. write an equation that could be used to find the value of x. solve for x and then find the length of the side. ''


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Respuesta :

Answer:

20

Step-by-step explanation:

Perimeter of equilateral triangle = 3a

a represents side

60 = 3(3x+2)

60 = 9x + 6

9x = 54

x = 6

Length of one side = 3×6 + 2= 18+2 =20

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