Question

in following figure it is being​

Answer 1

Answer:  For I   a= 110   b= 70,  for II  a =40  b= 130,  for III a=78 b= 102 for IV a= 60   b= 120

Step-by-step explanation:  i will explain the first one,  weknow that a=110 because the angle across from it is 110 so to find b= we subtract 110 from 180 so b = 70

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Answer 2

Answer:

answer of i is    a=110 , b=70

answer of ii is   a=50 , b=130

answer of iii is  a =78 , b=102

answer of iv is  a = 60 ,b=120

Step-by-step explanation:

i) a=110  because the angle with measure 110 is vertically opposite angles

  b=70 because angle a and b are on the same side of transversal which when added make up to 180 , 180-110=70

ii) a=50 because the angle with measure 130 and angle a are on the same side of the transversal which when added make up to 180 so 180-130 =50

b=130 because the angle with measure 130 is vertically opposite angles

iii) a=78 because the angle with measure 102 and angle a make a linear pair

  180-102=78

   b=102 because angle with measure 102 and angle b are corresponding which means their measures are same

iv)a= 60 because the angle with measure 60 and the angle a are alternate interior angles which means their measures are same

   b=120 because angle with measure 60 and angle b are on the same side of the transversal which means when added sum is 180

b=180-60

b = 120

hope this answer helps you

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