Question

please answer these questions

Answer 1

6 triangle x=25
25+25=50
x+x+130=180
2x+130=180
2x=50
x=25

Answer 2

i) A+B=C (sum of opposite angles is external angle)
50+x=125
x=125-50
x=75

ii)2x+x=120
3x=120
x=120/3
x=40
2x=80

iii)2x+3x=80
5x=80
x=80/5
x=16
2x=32
3x=48

4)z+130=180 (linear pair)
z=180-130
z=50
y+140=180 (linear pair)
180-140=40
z+y+x=180 (sum of all angles =180)
50+40 +x=180
90+x=180
x=180-90
x=90

5)y+125=180 (linear pair)
180-125=y
55=y
55+x+y=180 ( sum of all angles =180)
55+55+x=180
110+x=+80
x=180-110
x=70

x+x=130 ( sum of opposite angles= external angle
2x=139
x=130/2
x=65

hope this helps u