Respuesta :
Answer:
25.5
Step-by-step explanation:
first pyramid: 6*8.5
second pyramid: 3 (half the length of the first) *8.5
3*8.5 = 25.5
Answer:
25.5
Step-by-step explanation:
There are multiple squares you need to find the area of each one by finding the area of each square then adding them together to get the surface area.