1. a. 7 cubes have 84 edges
b. 7 cubes have 42 edges
c. 7 cubes have 56 edges
2.
|
a.
|
b.
|
||
|
(i)
|
Prism |
(i)
|
 |
|
(ii)
|
Prism |
(ii)
|
 |
|
(iii)
|
Pyramid |
(iii)
|
 |
|
(iv)
|
Prism |
(iv)
|
 |
|
(v)
|
Pyramid |
(v)
|
 |
|
(vi)
|
Prism |
(vi)
|
 |
3.
a.  |
b.  |
c.  |
4. a. AE or DG or BF or CH
b. A, B, C, D, E, F, G or H
c. ABCD or EFHG
d. AC or BD or EH or FG
