There are 108 degrees in each interior angle of a regular pentagon .
I hope that's help !
Answer:

Step-by-step explanation:
The given relation is

To make
the subject, we square both sides of the equation to get;


Isolate
on one side of the equation;

Or

We take the positive square root of both sides to get;

Answer:
c
Step-by-step explanation:
because if you solve the problem it is equal to c
Assuming it pivots around one side length, it should form a cylinder.