Help me please I am confused what to do next

No.8

m<1 = 74°( just like example)

m<2 = 180°-74°=106°

m<3 = 74°( just like example)

m<4 = 180°-74°=106°

(n<5) m<5 = 74°( just like example)

(n<6) m<6 = 180°-74°=106°

(n<7) m<7 = 74°( just like example)

(n<8) m<8 = 180°-74°=106°

where's the diagrams?

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80