Answer:
1.900 2(i)1260 (ii)9 3.20 4.80 5.36 6(i)540 (ii)100
Explanation:
1.(7-2)*180
=5*180
=900
2(a)(i) (9-2)*180
=7*180
=1260
(ii) 9
3 360/x=18
x=20
4 (5-2)*180
=3*180
=540
2y+y+y+110+110=540
4y=320
y=80
5 360/x=30
x=36
6(i) (5-2)*180
=3*180
=540
(ii)x+95+115+115+115=540
x=100