I have a LVM (/dev/data/files) with 170G which is currently on a Physical volume (/dev/sdb1) Here is the structure, shown by lsblk command

lsblk
sdb                 8:16   0   220G  0 disk
└─sdb1              8:17   0   170G  0 part
  └─files           253:2  0   170G  0 lvm  /mnt/data

What i did was:

I added 50G on Physical volume, as you can see above with 220G so now when i execute the command fdisk -l /dev/sdb it shows the new added size to it.

fdisk -l /dev/sdb
Disk /dev/sdb: 236.2 GB, 236223201280 bytes, 461373440 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 1048576 bytes

What i wanna do: I want to add that 50G size to the LVM /mnt/data Currently it has only 170G

lvdisplay -vm /dev/data/files
  --- Logical volume ---
  LV Path                /dev/data/files
  LV Name                data
  VG Name                vgdata
  LV UUID                5abc1M-yBeb-Vzxc-d6mK-yqwe-iyui-glkjL
  LV Write Access        read/write
  LV Creation host, time myvm, 2020-04-09 12:27:06 -0300
  LV Status              available
  LV Size                <170.00 GiB
  Current LE             43519
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     8192
  Block device           253:2

  --- Segments ---
  Logical extents 0 to 43518:
    Type                linear
    Physical volume     /dev/sdb1
    Physical extents    0 to 43518

Also, the command fdisk on sdb1:

fdisk -l /dev/sdb1
Disk /dev/sdb1: 182.5 GB, 182535061504 bytes, 356513792 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 1048576 bytes

So... How do i extend the volume size to fit 220G instead of 170G? Thats my main objective and i do not know how to do that.

Thanks in advance for everyone that helps me!