1.

 
(i)
(ii)
(iii)
(iv)
a
12
9
6
12
b
6
5
4
6
c
8
6
4
8

2. a. A soccer ball − sphere

b. A can of coke − cylinder

c. A shoe box − cuboid

d. A plastic marker used to indicate road works − cone

e. A small tent − triangular prism

3. Activity

4. a matches with (iii)

b matches with (ii)

c matches with (i)

d matches with (iv)