Math Problem Statement
Solution
To find the perimeter of this L-shaped figure, we need to sum the lengths of all its outer sides.
The outer sides are labeled as:
- One side:
- One vertical side:
- Another vertical side:
- The short horizontal side at the bottom:
Looking at the figure, we can deduce the other two lengths needed. Since the shape is L-shaped:
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The horizontal length at the top is , and the total horizontal length of the entire shape (including the short side at the bottom) would be the same. Thus, the horizontal length of the bottom side is already , so the missing horizontal part is .
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Similarly, the total vertical height is made up of the two vertical sides: and , so no new length needs to be added vertically.
Now, sum all these lengths to calculate the perimeter:
Simplify this expression:
Combine like terms:
Thus, the perimeter of the shape is:
Would you like further explanation on any of the steps, or do you have any questions?
Here are some related questions to consider:
- How do you calculate the perimeter of irregular shapes?
- What would the expression be if the shorter horizontal side was different?
- How does adding or removing parts of the shape affect the perimeter?
- Can you apply this process to find the area of the same shape?
- How would the expression for the perimeter change if the dimensions were doubled?
Tip: Always visualize the shape in terms of smaller, simpler components to easily calculate perimeters and areas.
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Math Problem Analysis
Mathematical Concepts
Algebra
Perimeter
Linear Expressions
Formulas
Perimeter = Sum of all outer sides
Theorems
Properties of Perimeter for L-shaped figures
Suitable Grade Level
Grades 7-9