1. **State the problem:** We have a right triangle with the shorter leg as $(x - 9)$ inches, the longer leg as $x$ inches, and the hypotenuse as $(x + 9)$ inches. We need to find the lengths of the legs and the hypotenuse.
2. **Formula used:** For a right triangle, the Pythagorean theorem applies:
$$ (\text{shorter leg})^2 + (\text{longer leg})^2 = (\text{hypotenuse})^2 $$
3. **Set up the equation:**
$$ (x - 9)^2 + x^2 = (x + 9)^2 $$
4. **Expand each term:**
$$ (x - 9)^2 = x^2 - 18x + 81 $$
$$ x^2 = x^2 $$
$$ (x + 9)^2 = x^2 + 18x + 81 $$
5. **Substitute back into the equation:**
$$ x^2 - 18x + 81 + x^2 = x^2 + 18x + 81 $$
6. **Combine like terms:**
$$ 2x^2 - 18x + 81 = x^2 + 18x + 81 $$
7. **Bring all terms to one side:**
$$ 2x^2 - 18x + 81 - x^2 - 18x - 81 = 0 $$
$$ x^2 - 36x = 0 $$
8. **Factor the equation:**
$$ x(x - 36) = 0 $$
9. **Solve for $x$:**
$$ x = 0 \quad \text{or} \quad x = 36 $$
Since length cannot be zero, $x = 36$ inches.
10. **Find the lengths:**
- Longer leg: $x = 36$ inches
- Shorter leg: $x - 9 = 36 - 9 = 27$ inches
- Hypotenuse: $x + 9 = 36 + 9 = 45$ inches
**Final answer:**
- Shorter leg = 27 inches
- Longer leg = 36 inches
- Hypotenuse = 45 inches
Right Triangle Legs 84781D
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.