It looks like you've uploaded an image with a math problem titled
"Length of the Unknown Side", which involves finding the length of the unknown side (labeled as "x") in various rectangles and composite shapes. The instruction says:
> *"What is the length of the unknown side (x) to make the perimeter of the following shapes? The shapes do not have to close."*
However, since I can't view images directly, I’ll need you to describe the image or provide details about the shapes and given measurements.
But based on your description and common types of such problems, here’s how we typically solve them:
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🔍 General Strategy:
To find the
unknown side (x) in a shape using
perimeter, we use the formula:
>
Perimeter = Sum of all side lengths
For each shape:
1. Add up all known side lengths.
2. Subtract that sum from the total perimeter given.
3. The result is the unknown side (x).
Let’s assume the image contains several rectangles or L-shaped figures with some sides labeled and one side marked as
x, and a total perimeter is given for each.
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✔ Example Problem (Typical Format):
Suppose one shape has:
- Sides: 5 cm, 8 cm, 5 cm, and x
- Perimeter = 26 cm
Then:
> 5 + 8 + 5 + x = 26
> 18 + x = 26
> x = 26 – 18 =
8 cm
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🧩 Common Patterns in These Problems:
- Some shapes are
rectangles with one side missing.
- Others may be
composite shapes (like L-shapes), where you must carefully add all outer edges.
- The key is to
add all known side lengths and subtract from the total perimeter.
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📌 Please Provide:
Since I can’t see the image, please tell me:
1. How many shapes are there?
2. For each shape:
- What are the known side lengths?
- What is the total perimeter given?
- Where is "x" located?
Or, if you can type out the details of one or more shapes (e.g., “Rectangle with sides 4, 7, 4, and x; perimeter = 22”), I can solve it step by step.
Once I have the data, I’ll walk you through solving each one!
Parent Tip: Review the logic above to help your child master the concept of area and perimeter of compound shapes worksheet.