Math Problem Statement

The perimeter of WXYZ is 6 more than 4 times XY. If WX = 12 and ZY = 20, then find WZ.

Solution

The problem in your image gives the following information:

  • The perimeter of quadrilateral WXYZ is 6 more than 4 times the length of side XY.
  • You are provided with side lengths: WX=12WX = 12 and ZY=20ZY = 20.
  • You are asked to find WZWZ.

Step-by-Step Solution:

  1. Define Variables: Let XY=xXY = x, the unknown side length.

  2. Perimeter Formula: The perimeter of quadrilateral WXYZ is the sum of all its sides: P=WX+XY+ZY+WZP = WX + XY + ZY + WZ Plugging in the given values: P=12+x+20+WZP = 12 + x + 20 + WZ Simplifying: P=32+x+WZP = 32 + x + WZ

  3. Use the Perimeter Condition: The problem states that the perimeter is 6 more than 4 times XYXY: P=4x+6P = 4x + 6 Set the two expressions for the perimeter equal to each other: 32+x+WZ=4x+632 + x + WZ = 4x + 6

  4. Solve for WZWZ: Rearranging the equation: WZ=4x+632xWZ = 4x + 6 - 32 - x Simplifying: WZ=3x26WZ = 3x - 26

  5. Conclusion: The side length WZWZ depends on XYXY. If you find XYXY (which seems to be missing from the problem), you can plug it into the equation to find WZWZ.

Please check if the value of XYXY is available elsewhere in the test. If it is not given, you cannot solve for WZWZ numerically but the formula WZ=3x26WZ = 3x - 26 will hold true.

Would you like further details or help in determining the value of XYXY? Here are 5 questions to deepen your understanding:

  1. How does the perimeter formula change if more sides were known?
  2. Why is rearranging the equation important in this context?
  3. Could the problem be solved without knowing the perimeter condition?
  4. How would the solution change if the shape of the figure were different?
  5. What are the properties of trapezoids (like WXYZ) that might help solve such problems?

Tip: Always check if a problem gives all the necessary data before attempting a final calculation!

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Math Problem Analysis

Mathematical Concepts

Algebra
Perimeter of Quadrilaterals
Linear Equations

Formulas

Perimeter of quadrilateral: P = WX + XY + ZY + WZ
Given condition: P = 4(XY) + 6

Theorems

Linear equation solving

Suitable Grade Level

Grades 9-10