Answer:
B 4
Step-by-step explanation:
Can A is 8 x 8π, or 64π, where the radius 4 was multiplied by 2 to get diameter and then by π to get length of can.
Can B is 4 x 4π, or 16π, where the radius of 2 is multiplied by 2 to get diameter and then by π to get length of can.
Can B can be painted 4 times over to paint same amount as Can A.
