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A carpenter wants to build a pergola.

What should be the length of each support structure?    


To find the length of each support structure in the pergola, we can analyze the given dimensions and use the Pythagorean theorem. The support structure forms a right triangle with the horizontal beam (1 meter) and the vertical difference between the heights of the beams (2.3 meters and 2 meters).

### Step 1: Determine the vertical difference in height
The vertical difference is:
\[ \text{Vertical difference} = 2.3 \, \text{m} - 2 \, \text{m} = 0.3 \, \text{m} \]

### Step 2: Apply the Pythagorean theorem
The support structure is the hypotenuse of the right triangle, where:
- One leg is the horizontal distance of \(1 \, \text{m}\),
- The other leg is the vertical difference \(0.3 \, \text{m}\).

The Pythagorean theorem states:
\[
\text{Support length} = \sqrt{(\text{horizontal length})^2 + (\text{vertical difference})^2}
\]

Substituting the values:
\[
\text{Support length} = \sqrt{(1 \, \text{m})^2 + (0.3 \, \text{m})^2}
\]
\[
\text{Support length} = \sqrt{1 + 0.09}
\]
\[
\text{Support length} = \sqrt{1.09}
\]
\[
\text{Support length} \approx 1.044 \, \text{m}
\]

### Conclusion
The length of each support structure should be approximately **1.044 meters**.

Would you like more details or have any questions?

Here are some related questions you might consider:
1. How would the length change if the horizontal distance were different?
2. What if the pergola were taller—how would that affect the support length?
3. How would different materials affect the design of the support structure?
4. What are the implications of having an angled support structure for the stability of the pergola?
5. How would you calculate the load capacity of this pergola design?

**Tip:** Always double-check measurements and calculations before cutting materials to ensure accuracy in construction.

A carpenter wants to build a pergola. What should be the length of each support structure?

Learn how to calculate the length of the support structure for a pergola using the Pythagorean Theorem. This problem covers key geometry concepts, including right triangles and the application of the Pythagorean Theorem. Suitable for students in Grades 8-10.

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