I want the answer of these three figures

Dear Student,

1)A)

sum of all angle to be 360°

So, x +60° =360°
x = 360° - 60°

x = 300°

1)B)
As we know sum of all angle in figure will be 360°

x+70°+50°+160° =360°
x + 280° =360°
x = 360° -280°
x = 80°


 
1)C)we know that the sum of all the angles at a point is 360°
.°. 30°+40°+90°+140°+x°=360°
300°+x°=360°
x°=360°-300°
x°=60°
 


Regards



 

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