2010006805

Level: 
Project ID: 
2010006805
Source Problem: 
Accepted: 
0
Clonable: 
1
Easy: 
0
The picture shows first three patterns formed by dots. The numbers of dots in patterns correspond to terms of an arithmetic sequence. To which term corresponds a pattern that will use \(28\) dots?
Nineth
Eighth
Seventh
Tenth