Here are a few places on the site you might want to visit.
Finding how much DNA you share with a match is key to establishing how you and your match might be related. On 23andMe the amount is shown as a percentage but perhaps you prefer to see your match in centimorgans? Click on a match from your DNA relatives screen to see the % of DNA you share. In this instance, it’s 2.73%.
Click on your match’s name and then scroll down until you find the section ‘your genetic relationship’ and click on ‘view DNA details’
If they have opted into sharing you will then see where you and your cousin match and the amount in centimorgans. I share 204cMs