Angles of triangles
Angles of polygons
Using similar triangles
Parallel lines and transversals
100
x=36+72
x=72
100
s=(3-2)x180
=180
100
x+45+125=180
x=10
100
what does x equal
x=70
200
x+32+48=180
x=100
200
s=(4-2)x
=360
200
x+75+50=180
x=55
200
what does y equals
y=130
300
x+(x+28)+90=180
x=31
300
s=(6-2)x180
=120
300
x+90+42=180
x=48
300
what does b equal
b=62
400
2a=(a-5)+80
2(75)=150
400
s=(7-2)x180
=122
400
x+77+33=180
x=70
400
what does t and b equal
tb=60
500
44+(9x+10)+12x=180
44,64,72
500
s=(5-2)x180
=540
500
x+(3x8)+67+88=180
x=1
500
what does z equal
x=60