Welcome to Westonci.ca, your ultimate destination for finding answers to a wide range of questions from experts. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

Triangle J′K′L′ shown on the grid below is a dilation of triangle JKL using the origin as the center of dilation: Two triangles on a grid. First triangle has vertices J 4 and 6, K 2 and 4, and L 6 and 3. Image triangle has vertices J prime 8 and 12, K prime 4 and 8, L prime 12 and 6. Which scale factor was used to create triangle J′K′L′?

Sagot :

When a shape is dilated, the size of the new shape will be different (i.e. bigger or smaller) from the size of the original shape. The scale factor from [tex]\triangle JKL[/tex] to [tex]\triangle J'K'L'[/tex] is 2

Given that:

[tex]\triangle JKL \sim \triangle J'K'L'[/tex] --- similar triangles

Where

[tex]J = (4,6)\\K = (2,4)\\L = (6,3)[/tex]         [tex]J' = (8,12)\\K' = (4,8)\\L' = (12,6)[/tex]

To calculate the scale factor (k) from [tex]\triangle JKL[/tex] to [tex]\triangle J'K'L'[/tex], we simply divide the coordinates of [tex]\triangle J'K'L'[/tex] by the coordinates of [tex]\triangle JKL[/tex]

Using J and J' as points of reference:

[tex]k = \frac{J'}{J}[/tex]

This gives:

[tex]k = \frac{(8,12)}{(4,6)}[/tex]

Factorize

[tex]k = \frac{2 \times (4,6)}{(4,6)}[/tex]

Cancel out the common term

[tex]k = 2[/tex]

Hence, the scale factor from [tex]\triangle JKL[/tex] to [tex]\triangle J'K'L'[/tex] is 2

Read more about scale factors and dilation at:

https://brainly.com/question/2700001

Answer:

Scale factor of 2 is correct

Step-by-step explanation: