If a two-dimensional shape is dilated by a factor of 13

, what is the effect on the area?(1 point)
Responses

It is 16
as great.
It is Start Fraction 1 over 6 End Fraction as great.

It is 23
as great.
It is Start Fraction 2 over 3 End Fraction as great.

It is 19
as great.
It is Start Fraction 1 over 9 End Fraction as great.

It is 13
as great.

1 answer

When a two-dimensional shape is dilated by a factor of \( k \), the area of the shape is affected by the square of that factor.

If the dilation factor is \( k = 13 \), the effect on the area is calculated as follows:

\[ \text{New Area} = k^2 \times \text{Original Area} = 13^2 \times \text{Original Area} = 169 \times \text{Original Area} \]

Thus, the area is \( 169 \) times as great.

From the given options, the correct response is:

It is 169 as great.

However, since this option is not present, you might want to double-check the provided options. The other options do not seem to relate properly to the dilation factor of 13. If the dilation factor were \( 4 \) for example, then the area would be \( 16 \) times as great, but in this case, \( 13^2 \) is \( 169 \).