Q:

Lisa draws a regular polygon and cuts out a regular pentagon with the same length from it. Find the perimeter of the remaining shape.

Lisa draws a regular hexagon of $11$ cm and cuts out a regular pentagon with the same length from it. Find the perimeter of the remaining shape.
A) $88$ cm
B) $99$ cm
C) $110$ cm
D) $121$ cm

A:

Hint: You lose $11$cm from losing the side, but gain $4*11=44$cm from the cut out of the pentagon.

