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Answer:

9. a=(180-65)°=115°

so, b=115° ( a and b are opposite ANGLES)

c=65°

10. i) x=(180-70)°=110°

ii) x={180-(60+70)}°=(180-130)°=50°

11. -5/8, -9/16 , -3/4

= -10/16 , -9/16 , -12/16

arranging in ascending ORDER

-12/16 , -10/16 , -9 /16

=> -3/4 , -5/8 , -9/16

12. a=70°

b=(180-70)°=110°

c=110°

d=70°

e= a=70°

f=b=110°

g=c=110°

h=d=70°


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