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To find the approximate perimeter of triangle \( \triangle ABC \) with points \( A(2, 7) \), \( B(-4, -3) \), and \( C(6, 7) \), we need to calculate the lengths of the sides using the distance formula:

\[
\text{Distance} = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}
\]

### Step 1: Calculate the length of side \( AB \)

Given points \( A(2, 7) \) and \( B(-4, -3) \):

\[
AB = \sqrt{(2 - (-4))^2 + (7 - (-3))^2} = \sqrt{(2 + 4)^2 + (7 + 3)^2} = \sqrt{6^2 + 10^2} = \sqrt{36 + 100} = \sqrt{136} \approx 11.66
\]

### Step 2: Calculate the length of side \( BC \)

Given points \( B(-4, -3) \) and \( C(6, 7) \):

\[
BC = \sqrt{(6 - (-4))^2 + (7 - (-3))^2} = \sqrt{(6 + 4)^2 + (7 + 3)^2} = \sqrt{10^2 + 10^2} = \sqrt{100 + 100} = \sqrt{200} \approx 14.14
\]

### Step 3: Calculate the length of side \( AC \)

Given points \( A(2, 7) \) and \( C(6, 7) \):

\[
AC = \sqrt{(6 - 2)^2 + (7 - 7)^2} = \sqrt{4^2 + 0^2} = \sqrt{16} = 4
\]

### Step 4: Find the perimeter

\[
\text{Perimeter} = AB + BC + AC \approx 11.66 + 14.14 + 4 = 29.8
\]

Thus, the approximate perimeter of triangle \( \triangle ABC \) is **29.8** units.

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Would you like further details, or do you have any questions? Here are some related topics you might find useful:

1. How to derive the distance formula.
2. Application of distance formulas in coordinate geometry.
3. Properties of different types of triangles based on side lengths.
4. Calculating perimeters for different polygons.
5. Using the Pythagorean theorem for distance calculations.

**Tip:** For triangles, always ensure to double-check coordinates to avoid miscalculations in distances.

Find the approximate perimeter of triangle ABC plotted with points A(2, 7), B(-4, -3), and C(6, 7).

Learn how to calculate the perimeter of triangle ABC plotted with coordinates A(2, 7), B(-4, -3), and C(6, 7). Using the distance formula and properties of geometry, this problem is ideal for students in Grades 7-10.

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