Math Problem Statement
Solution
In the image, you are tasked with drawing a rectangle that has the same perimeter as the one shown but with a larger area.
Step-by-step solution:
-
Identify the dimensions of the current rectangle:
- The top rectangle is a 5x2 rectangle.
- This means it has a width of 5 units and a height of 2 units.
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Calculate the perimeter of the original rectangle: The formula for the perimeter of a rectangle is: For the 5x2 rectangle:
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Find a new rectangle with the same perimeter: The new rectangle must have the same perimeter of 14 units but a larger area. We will try different pairs of length and width that satisfy this condition.
For example:
- If the length is 4 units, then the width must be units because: So a 4x3 rectangle also has a perimeter of 14 units.
-
Calculate the area of both rectangles:
- The area of the original 5x2 rectangle is:
- The area of the new 4x3 rectangle is:
Thus, a 4x3 rectangle has the same perimeter (14 units) but a greater area (12 square units compared to 10 square units).
Would you like further clarification on any part of this process?
Here are 5 related questions to deepen your understanding:
- What other dimensions could result in a rectangle with a perimeter of 14 units?
- Why does the perimeter remain constant, even though the area changes?
- Can you find the dimensions of a square with the same perimeter of 14 units?
- What is the relationship between area and perimeter for different shapes?
- How does increasing the dimensions of one side affect the area of a rectangle?
Tip: When maximizing the area with a fixed perimeter, a square often gives the maximum possible area.
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Math Problem Analysis
Mathematical Concepts
Geometry
Perimeter
Area
Formulas
Perimeter of rectangle: P = 2 × (length + width)
Area of rectangle: A = length × width
Theorems
Relationship between area and perimeter in rectangles
Suitable Grade Level
Grades 4-6
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