(a)[1]
State the order of rotational symmetry for Diagram 1.
(b)[1]
Finish Diagram 4 by adding dots and crosses.
(c)[3]
Fill in the table for Diagram 4 and Diagram 5.
(d(i))[1]
Describe, using words, the rule for extending the sequence of dot numbers.
(d(ii))[2]
Determine the number of dots in Diagram 12.
(e(i))[2]
Write an expression for the number of crosses in Diagram $n$.
(e(ii))[2]
Find $n$.