Answer:
The pitcher plant's approximate volume is 24.492  .
.
Step-by-step explanation:
We are given that a  pitcher is shaped like a cylinder with a radius of 1 centimeter and a height of 7.8 cm. 
Let the radius of a cylinder = r = 1 cm
and the height of a cylinder = h = 7.8 cm
As we know that the volume of a cylinder is given by;
The volume of a cylinder = 
                            =  {taking approximate value of
  {taking approximate value of  to be 3.14}
 to be 3.14}
                            = 
                            = 24.492 
Hence, this pitcher plant's approximate volume is 24.492  .
.