Answer:
Your answer is 4.1x +29.
Perimeter means the boundary of any figure. so when u have to find out the perimeter of any shape u just add up all the numbers provided.
Like for example, a rectangle has length 12cm and width 4cm. find out its perimeter.
Add up all the four sides of the rectangle. 12+4+12+4= 32
or u can simply do it like this 2(l+b)
=2(12+4)
= 2(16)
therefore answer is 32.
Hope u understood :D