Question

Please solve this question

Answer 1

take AB and CD as parallel lines and AD as transversal

angle A and angle D are alternative angles. so, they are equal.

thus angle a is 55

in triangle AOB,

A+B+O is 180

60+55+O is 180

angle AOB is 65

thus angle b is 65

angle b and angle DOC are vertically opposite

so angle DOC also 65

65+55+c =180

120+c=180

c =60

thus c is 60

a is 55

b is 65

c is 60

Answer 2

Answer:

c=60

a=55

b=65

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