Math Problem Statement

The figure below is a square. Find the length of side x in simplest radical form with a rational denominator.

Solution

The problem you’ve shared shows a square with a diagonal labeled 3\sqrt{3} and a side of the square labeled xx. To find the length of side xx, we can use the relationship between the side length and the diagonal of a square.

For a square, the diagonal dd is related to the side length ss by the formula: d=s2d = s\sqrt{2} Here, the diagonal is given as 3\sqrt{3}, so we can set up the equation: 3=x2\sqrt{3} = x\sqrt{2} Now, solve for xx by dividing both sides of the equation by 2\sqrt{2}: x=32x = \frac{\sqrt{3}}{\sqrt{2}} To simplify this expression and rationalize the denominator, multiply both the numerator and the denominator by 2\sqrt{2}: x=3222=62x = \frac{\sqrt{3} \cdot \sqrt{2}}{\sqrt{2} \cdot \sqrt{2}} = \frac{\sqrt{6}}{2}

Thus, the length of side xx is 62\frac{\sqrt{6}}{2}.

Would you like more details or a step-by-step breakdown of this process?

Here are some related questions you may find interesting:

  1. What is the relationship between the side length and diagonal in a square?
  2. How do we rationalize the denominator of a fraction involving square roots?
  3. How does this formula apply to other shapes, like rectangles or rhombuses?
  4. What is the value of 62\frac{\sqrt{6}}{2} as a decimal?
  5. Can this approach be used for other polygons like equilateral triangles?

Tip: When working with square roots, it’s often helpful to simplify the expression as much as possible by rationalizing the denominator!

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Math Problem Analysis

Mathematical Concepts

Geometry
Square properties
Radicals

Formulas

d = s√2
x = √3 / √2
rationalizing the denominator

Theorems

Pythagorean theorem
Rationalizing square roots

Suitable Grade Level

Grades 8-10