SOLUTION: The sides of an equilateral triangle measure (x+y+3) cm, (3y-2) cm and (2x+y) cm. Calculate the perimeter of the triangle by forming two equations.

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Question 664895: The sides of an equilateral triangle measure (x+y+3) cm, (3y-2) cm and (2x+y) cm. Calculate the perimeter of the triangle by forming two equations.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

The sides of an equilateral triangle measure 

(x+y+3) cm  

(3y-2) cm and 

(2x+y) cm

ALL sides equal:

 x%2By%2B3=+2x%2By ,  x = 3cm

 x%2By%2B3=+3y-2  ||substituting x = 3cm

 3 + y + 3 = 3y - 2

        8 = 2y

        y = 4cm

(x+y+3) cm  s+=+3cm+%2B+4cm+%2B+3cm+=+10cm , P+=+10cm+%2B+10cm+%2B+10cm+=+30cm