SOLUTION: Write an equation to find the value or x so that each pair of polygons has the same perimeter. Then solve.
Triangle: x+6, x+3, x+9
Rectangle: x+1, x+4
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Expressions-with-variables
-> SOLUTION: Write an equation to find the value or x so that each pair of polygons has the same perimeter. Then solve.
Triangle: x+6, x+3, x+9
Rectangle: x+1, x+4
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Question 913024: Write an equation to find the value or x so that each pair of polygons has the same perimeter. Then solve.
Triangle: x+6, x+3, x+9
Rectangle: x+1, x+4 Answer by richard1234(7193) (Show Source):
You can put this solution on YOUR website! Perimeter of triangle = (x+6) + (x+3) + (x+9) = 3x + 18
Perimeter of rectangle = 2((x+1) + (x+4)) = 2(2x+5) = 4x + 10
These two are equal, so 3x + 18 = 4x + 10 --> x = 8.
