It looks like you've uploaded two images. The second one contains a problem that asks to "Find the missing side length" for an irregular shape, assuming all sides meet at right angles. I'll guide you through solving this problem based on the diagram.

Solution:

The shape resembles an "L" and the key is to use the relationship between the lengths of the two longer horizontal and vertical sections of the "L" shape.

• The horizontal total length is 12 yd.

  • The horizontal section at the bottom is 5 yd.
  • The top horizontal section is 4 yd.

  So, the missing horizontal side is: $12 \, \text{yd} - 5 \, \text{yd} = 7 \, \text{yd}$

Thus, the missing side length is 7 yards.

Would you like further clarification or a more detailed explanation? Here are some related questions for deeper understanding:

5 Related Questions:

1. How can the properties of right angles be used to find unknown lengths in composite shapes?
2. Why is it important to subtract smaller side lengths from the total to find missing lengths in irregular shapes?
3. Can you apply the same method for finding missing lengths in three-dimensional shapes?
4. How do different units of measurement affect calculations for missing lengths?
5. What other geometric principles are useful for solving problems involving irregular polygons?

Tip:

Always visualize or sketch the entire shape and mark known lengths clearly before starting calculations to avoid confusion.