My notes app was inadvertantly deleted from my iPhone 6 along with all my notes. a backup has been made on icloud since then. Is there any way to restore them?

If you were syncing Notes using iCloud, they wouldn't be part of an iCloud backup. If syncing, have you checked the Notes app and at iCloud.com/Notes for a Recently Deleted folder?

If you weren't syncing Notes using iCloud, if you can't find them in a Recently Deleted folder, you need to restore from a backup made before they were deleted, not one made afterwards.

Backup - Restore your device from an iCloud or iTunes backup

hi Somadamii