Answer:
SA = 416, V= 480
Step-by-step explanation:
SA = 2 x 10 x 12 + 2 x 4 x 12 + 2 x 4 x 10 = 416
There are 3 pairs of rectangles of different dimensions that make up the solid thus u just need to find the area of each of the 3 pairs and add them up.
vol = L x B x H = 12 x 10 x 4 = 480
