You Do Need power plug adapter while traveling from Liberia to Bangladesh.

Here is Why You Need An Adapter

The outlet and plug type used in Bangladesh are A, C, D, G and K and in Liberia are A, B, C and F. This is how they look like.

Liberia

In Liberia, outlets of type A, B, C and F are in use.

Type A

Type B

Type C

Type F

Bangladesh

In Bangladesh, outlets of type A, C, D, G and K are in use.

Type A

Type C

Type D

Type G

Type K