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9 votes
a square and a equilateral triangle have the same perimeter the perimeter of the triangles is 12(z-2)cm.the perimeter of the square is 4x cm find the perimeter of each figure by writing and solving an equation for the variable of x. what is the value of x​

User Ifan Iqbal
by
3.3k points

2 Answers

17 votes
17 votes

As both perimeters are equal equate them

  • 12(x-2)=4x
  • 12x-24=4x
  • 8x=24
  • x=3
User De Li
by
2.8k points
27 votes
27 votes

Answer:

  • x = 3

Explanation:

The perimeters are equal:

  • 12(x - 2) = 4x

Solve for x:

  • 12x - 24 = 4x
  • 12x - 4x = 24
  • 8x = 24
  • x = 3

User Kartlee
by
2.9k points