Posted on May 1, 2021 by seth mipverop. cm. If the total area of a cube is 3.375 x 102 cm² , then its edge length©b) 7.5a3.75C) 28.125d . cm. If the total area of a cube is 3.375 x 102 cm² , then its edge length©b) 7.5a3.75C) 28.125d 56.25