Current location - Training Enrollment Network - Mathematics courses - Xiaohong used three cuboid building blocks to realize the following three-dimensional modeling. What is the total area of the front and back of this three-dimensional shape? upper
Xiaohong used three cuboid building blocks to realize the following three-dimensional modeling. What is the total area of the front and back of this three-dimensional shape? upper
Front and rear: 30 * 45 * 2+30 * 28 * 2+30 *15 * 2 = 5280 (square centimeter)