Answer:
1) triangle , squares
2) A= 56
3) multiply 8 x 8 x 8 which is 24 then add 4 more then it 28 . Then 10 + 18 = 28 so 28 + 28 is 56.
Step-by-step explanation:
A a triangle and two rectangles
B 368640
C 8x8x8x4x10x18
