Question

The question I have is this 90+30+a=180

Answer 1

Answer:

a = 60

Step-by-step explanation:

90 + 30 = 120

120 - 180 = 60

Answer 2

Answer:

$a = 60$

Step-by-step explanation:

Add 90 with 30 you get 120, divide 120 by 180 get 60