Math Problem Statement

Solve for x

Find the value of x.

Solution

The problem involves a right triangle, and we need to find the value of xx. The sides of the triangle are labeled as follows:

  • The hypotenuse (the side opposite the right angle) is xx.
  • One leg of the triangle is 88.
  • The other leg of the triangle is x4x - 4.

We can use the Pythagorean theorem to solve for xx. The Pythagorean theorem states:

(Hypotenuse)2=(Leg 1)2+(Leg 2)2\text{(Hypotenuse)}^2 = \text{(Leg 1)}^2 + \text{(Leg 2)}^2

Substituting the given values into the equation:

x2=82+(x4)2x^2 = 8^2 + (x - 4)^2

Now, let's solve for xx:

  1. Expand the equation: x2=64+(x28x+16)x^2 = 64 + (x^2 - 8x + 16)

  2. Simplify the equation: x2=x28x+80x^2 = x^2 - 8x + 80

  3. Subtract x2x^2 from both sides: 0=8x+800 = -8x + 80

  4. Solve for xx: 8x=808x = 80 x=808=10x = \frac{80}{8} = 10

So, the value of xx is 10.

Would you like more details on this solution or have any other questions?


Related Questions:

  1. How does the Pythagorean theorem work in non-right triangles?
  2. What happens if both legs of the triangle were given and we needed to find the hypotenuse?
  3. Can the value of xx ever be negative in such problems?
  4. How can we verify the solution in the context of the triangle's dimensions?
  5. What if the triangle's dimensions were based on real-life measurements? How would rounding affect the answer?

Tip: Always check the context of the problem to ensure the triangle is right-angled before applying the Pythagorean theorem.

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Math Problem Analysis

Mathematical Concepts

Geometry
Algebra

Formulas

Pythagorean Theorem (a^2 + b^2 = c^2)

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 8-10