Circle x has a circumference of 44cm

https://youtu.be/q4EBfXlFXjw

this is the link of a video that can help , I promise I'm not trolling , this an actual video , just copy paste it somewhere and it may be of help to you, it's to find the diameter from circumference.

Step-by-step explanation:

once the diameter has been found , half it , and you have your radius , then for area use the formula , A = pi r² , and you have you now found Radius , Diameter and Area.

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.