Raji draws a square with a side length of x+5

cm. Ava draws a regular hexagon with a side length of x−1
cm. The two figures have the same perimeter. Write an equation that allows you to solve for x
. What is the value of x
?(1 point)
Responses

13
13

26
26

18
18

12

1 answer

To find the value of \( x \) given that the perimeters of Raji's square and Ava's hexagon are the same, we can start by calculating the perimeters of both shapes.

  1. Perimeter of the square: The perimeter \( P \) of a square with side length \( s \) is given by the formula: \[ P = 4s \] For Raji's square with side length \( x + 5 \): \[ P_{square} = 4(x + 5) \]

  2. Perimeter of the hexagon: The perimeter \( P \) of a regular hexagon with side length \( s \) is given by the formula: \[ P = 6s \] For Ava's hexagon with side length \( x - 1 \): \[ P_{hexagon} = 6(x - 1) \]

  3. Set the perimeters equal to each other: Since the perimeters are equal, we have: \[ 4(x + 5) = 6(x - 1) \]

  4. Solve for \( x \): Expanding both sides: \[ 4x + 20 = 6x - 6 \] Rearranging gives: \[ 20 + 6 = 6x - 4x \] This simplifies to: \[ 26 = 2x \] Dividing both sides by 2: \[ x = 13 \]

Thus, the solution is \( x = 13 \).