Question

please answer this question​

Answer 1

Answer:

It would be 100°. As sum of all the interior angles is 180°. So a will be a linear pair.

Answer 2

Answer:

In ABC, sum of interior angles is 180 degrees.

A+B+C= 180

70+30+c = 180

100+c= 180

c= 180-100

c= 80

now here, angle c + angle a= 180 degrees

80+a= 180

a= 180-80

a= 100 (option c)

Step-by-step explanation:

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