Answer: EB = 20
Step-by-step explanation:
Hi there. I'm sending you a picture of how the triangle looks like with the sides identified by their values. Given that AB | DE, meaning that they are proportional, then we can assume this:
- AD | EB
- CD | CE
We can also set this ratio up:
[tex]\frac{15}{EB} = \frac{21}{28}[/tex]
Cross multiply the proportion and then divide, to find the value of EB:
[tex]15 * 28 / 21=20[/tex]
Side EB should be equal to 20.
