Lalo has a circular trampoline with a diameter of eight meters.

1. What is the circumference of the trampoline?

   Hint (a):

   Circumference is equal to $2πr$, or the diameter times pi.

   Answer (a):

   $C = 8π$, or approximately $25.13$ meters.

2. What is the area of the trampoline?

   Hint (b):

   Remember that area is equal to $πr^{2}$. What is the radius of this circular trampoline if the diameter is $8$ meters?
   (Remember that the radius is equal to half of the diameter.)