Chaz draws a square with sides equal to 4 units, then he dilates the square so the sides are equal to 6 units. Chaz writes a fraction in lowest terms to express the relationship between the area of the original square and the dilated square, with the numerator expressing the area of the dilated square. What is that fraction? (1 point) Responses 49 Start Fraction 4 over 9 End Fraction 1636 16 over 36 214 2 Start Fraction 1 over 4 End Fraction 23 Start Fraction 2 over 3 End Fraction Skip to navigation

1 answer

To find the fraction that expresses the relationship between the area of the original square and the area of the dilated square, we first calculate the areas of both squares.

  1. Area of the original square:

    • The sides of the original square are 4 units.
    • The area \( A_1 \) is given by: \[ A_1 = \text{side}^2 = 4^2 = 16 \text{ square units} \]
  2. Area of the dilated square:

    • The sides of the dilated square are 6 units.
    • The area \( A_2 \) is given by: \[ A_2 = \text{side}^2 = 6^2 = 36 \text{ square units} \]
  3. Forming the fraction:

    • The fraction that expresses the relationship between the area of the dilated square (the numerator) and the area of the original square (the denominator) is: \[ \frac{A_2}{A_1} = \frac{36}{16} \]
  4. Simplifying the fraction:

    • We can simplify \( \frac{36}{16} \) by dividing the numerator and denominator by their greatest common divisor, which is 4: \[ \frac{36 \div 4}{16 \div 4} = \frac{9}{4} \]

Therefore, the fraction expressing the relationship between the area of the original square and the dilated square is:

\[ \frac{9}{4} \]

This can be expressed as "Start Fraction 9 over 4 End Fraction", which is not in the provided responses. However, if we are expressing the relationship of the dilated area compared to the original area, the fraction is:

\[ \frac{36}{16} \to \frac{9}{4} \]

If you only want the relationships between the areas (1:4, for instance), you would represent it as \( 36:16 \) simplified to \( 9:4 \) if you were to reverse it to express the other way, but here we need \( \frac{A_dilated}{A_original} = \frac{36}{16} = \frac{9}{4} \) which is the area of the dilated square over the original square, leading me to suspect that answer \( 9 \) starts with a potential confusion in interpretation.

The options are incorrect based on original question context; if we are to summarize, \(\frac{36}{16} or \frac{9}{4}\) fits the question of being expressed in lowest terms, hence chose \( \frac{9}{4}\) if provided or similar clear representation.