Can someone help me with art analysis? (Dm ndanesmith7 g mail)

Which three lines in this expert from anita desai’s games of twilight clearly show an omniscient narrator

1. who or what is grendel? what motivates him? what does he fear? what does he love? what does he need? what would he do to get what he wants? what is his fatal flaw (what ultimately destroys him)? what is his greatest strength (what ultimately saves him)?

Find the value of 'a' and 'b' angle xqr is 180