Math Problem Statement
Solution
To solve this problem, let’s use the information provided.
Given Information:
- The perimeter of the rectangle is 44 feet.
- The area of the rectangle is 105 square feet.
- We assume that the width () is smaller than the length ().
Step-by-Step Solution:
-
Set up the equations:
For a rectangle:
-
The perimeter () formula is: Given :
-
The area () formula is: Given :
-
-
Express in terms of :
From :
-
Substitute in the area equation:
Substitute into : Expanding this equation: Rearrange it to form a standard quadratic equation:
-
Solve the quadratic equation:
The equation can be solved using the quadratic formula: Calculate the discriminant: So: This gives two solutions for :
-
Determine the dimensions:
Since the width is smaller than the length:
- Let and .
Answer:
- Width: feet
- Length: feet
Would you like further clarification on any steps, or have any additional questions?
Here are some related questions to expand your understanding:
- How would the solution change if the width were larger than the length?
- Can you solve this problem using a different approach, like completing the square?
- What would the dimensions be if the area was different but the perimeter remained the same?
- How does the quadratic formula work in finding the dimensions here?
- Can you find the dimensions using trial and error instead of algebra?
Tip: For geometry problems involving rectangles, remember that the perimeter and area equations are powerful tools to set up and solve for unknowns.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Geometry
Algebra
Quadratic Equations
Formulas
Perimeter of rectangle: P = 2(l + w)
Area of rectangle: A = l * w
Quadratic equation formula: ax^2 + bx + c = 0
Theorems
Quadratic formula
Suitable Grade Level
Grade 10
Related Recommendation
Finding Length and Width of a Rectangle with Perimeter 42 and Area 90
Solving for x in a Rectangle Perimeter Problem with Linear Equations
Find the Dimensions of a Rectangle with Perimeter 38m and Area 84m²
Solving for Rectangle Dimensions with Area 105 cm² and Perimeter 44 cm
Find the Dimensions of a Rectangle with a Perimeter of 148 Feet