Question

. Are the angles marked 1 and 2 adjacent? (Fig 5.9). If they are not adjacent,
say, 'why.
1
2
200
(i)
(ii)​

Answer 1

Answer:

yes they are abjecent hope so It is helpful for u pls add me as brainlist

Answer 2

Answer:

they are not adjacent.

in first, angle 1 + angle 2 < 180°

in second, agle 1 + angle 2 = 180°