Math Problem Statement

Use the information given in the figure to find the length KN. If applicable, round your answer to the nearest whole number.

Solution

The diagram represents a right triangle LKN\triangle LKN, where LM\overline{LM} is the hypotenuse and KN\overline{KN} is the side we need to find. We are given the following:

  • LN=29\overline{LN} = 29
  • NM=48\overline{NM} = 48
  • LM=52\overline{LM} = 52

Since LKN\triangle LKN is a right triangle, we can use the Pythagorean theorem to find KN\overline{KN}. The theorem states:

LM2=LN2+KN2\overline{LM}^2 = \overline{LN}^2 + \overline{KN}^2

Step 1: Rearrange to solve for KN2\overline{KN}^2:

KN2=LM2LN2\overline{KN}^2 = \overline{LM}^2 - \overline{LN}^2

Step 2: Substitute the given values:

KN2=522292\overline{KN}^2 = 52^2 - 29^2

Step 3: Perform the calculations:

KN2=2704841=1863\overline{KN}^2 = 2704 - 841 = 1863

Step 4: Take the square root to find KN\overline{KN}:

KN=186343.2\overline{KN} = \sqrt{1863} \approx 43.2

Step 5: Round to the nearest whole number:

KN43\overline{KN} \approx 43

Final Answer:

The length of KN\overline{KN} is approximately 43 units.


Do you have any questions, or would you like additional details about this solution? Here are some related questions to explore:

  1. What is the Pythagorean theorem, and how is it used to solve problems like this?
  2. How can we verify if a triangle is a right triangle using side lengths?
  3. How can we find the missing side in a triangle when the hypotenuse and one leg are known?
  4. What are some practical applications of the Pythagorean theorem in real life?
  5. How do we compute square roots efficiently for larger numbers?

Tip: When working with approximate square roots, double-check calculations to ensure the correct level of precision!

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Math Problem Analysis

Mathematical Concepts

Right Triangles
Pythagorean Theorem
Square Roots

Formulas

c^2 = a^2 + b^2
KN^2 = LM^2 - LN^2
KN = √(LM^2 - LN^2)

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 7-10