3.2.1 Draw your own diagram

3.2.2 a. 25 b. 4 c. 5

3.2.3 63

3.2.4 25

3.2.5 Z1 = a + bi, Z2 = c + di, mid point is (a+c)/2 + (b+d)i/2 = (Z1 + Z2) / 2

3.2.6 a. 1 b. 1 c. 1

3.2.7 2 – i