Answer:
1. 43°
2.90°
3.43°
4.47°
5.90°
Step-by-step explanation:
1.m<1+m<2=90
m<1+47=90
m<1=90-47
m<1=43
2.m<3=m<1+m<2
m<3=43+47
m<3=90
3.m<4=m<1
m<4=43
4.m<5=m<2
m<5=47
5.m<6=m<3
m<6=90
