Choose one vertex, which we will arbitrarily call A. Locate A' on SA such that SA' = r SA.
Repeat Step 2 for the remaining vertices. Then connect the new vertices to create the image.
Let's draw the dilation of the given figure!
Step 1
Notice that S is one of the vertices of the original figure. Therefore, the image and the preimage are the same point S. We will begin by drawing the rays from S through each of the remaining vertices. Let's also name the remaining vertices A, B, C, D, and E.
Step 2
The given scale factor is r= 1.25. Let's locate A' on SA such that SA' is 1.25 times SA. To do this, we measure SA first. Then, after multiplying SA by 1.25, we get the length of SA'. We locate point A' by measuring this length from S along SA.
Step 3
We can locate B' on SB, C' on SC, D' on SD, and E' on SE in the same way we located A' in Step 2.
Finally, we can connect the new vertices and obtain the image of the original figure.
