Question

Please look the picture and answer

Answer 1

Answer:

130° and 50°

Explanation:

We know very well that sum of angles formed on a straight line always be 180°

here

a+b = 180 ------(1)

also given => a-2b = 30---------(2)

from one => a = 180-b

put value of a in eq. 2

(180-b) -2b = 30

=> 180-3b = 30

=> -3b = -150

=> b = 50

if b is 50 then

a = 180-50 = 130°