Solve for x.

Question image

Understand the Problem

The question is asking us to solve for the length of side x in a right triangle where AB is a horizontal segment measuring 6, BC is a vertical segment measuring 5, and ED is a vertical segment measuring 14. We may need to apply the Pythagorean theorem to find the value of x.

Answer

The length of side \( x \) is \( \sqrt{61} \).
Answer for screen readers

The length of side ( x ) is:

$$ x = \sqrt{61} $$

Steps to Solve

  1. Identify the right triangle segments

In this right triangle, segment AB is horizontal and measures 6 units, segment BC is vertical and measures 5 units. Segment ED is vertical and measures 14 units.

  1. Set up the Pythagorean theorem

For right triangles, the Pythagorean theorem states that:

$$ a^2 + b^2 = c^2 $$

where ( a ) and ( b ) are the legs and ( c ) is the hypotenuse.

  1. Assign the triangle sides to the formula

In this case, the legs are ( AB = 6 ) and ( BC = 5 ), while the hypotenuse ( AD ) must include both BC and ED. We find that ( AD ) can be represented as ( 5 + 14 = 19 ).

  1. Input the values into the Pythagorean theorem

Substituting the values into the theorem:

$$ 6^2 + 5^2 = x^2 $$

where ( x ) represents the length of side ( AD ).

  1. Calculate the squares

Compute ( 6^2 ) and ( 5^2 ):

$$ 36 + 25 = x^2 $$

  1. Solve for ( x^2 )

Combine the squares:

$$ x^2 = 36 + 25 = 61 $$

  1. Find ( x )

Take the square root of both sides to find ( x ):

$$ x = \sqrt{61} $$

The length of side ( x ) is:

$$ x = \sqrt{61} $$

More Information

The result ( \sqrt{61} ) is an irrational number, which means it cannot be expressed as a simple fraction. Its approximate value is about 7.81.

Tips

  • Confusing the sides of the triangle can lead to incorrect assignments in the Pythagorean theorem.
  • Forgetting to add both vertical segments ( BC ) and ( ED ) when calculating the hypotenuse can result in errors.

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