To do this, find the surface area of each two-dimensional shape.
The two triangles have a combined area of 24.
The two rectangles have a combined area of 70.
The center rectangle has an area of 42.
Add them together to get 136 as your surface area.
Answer:
3a + 3b
Step-by-step explanation:
Answer: 6.48
Step-by-step explanation: hope it helps