In the figure if l ║ m, n ║ p and 1 = 85o, then 2 is equal to.
n || p therefore 1 = 3 = 85o (corresponding angles)
2 + 3 = 180o (consecutive interior angles as m || l)
Then 2 = 950
In the figure, AOB is a straight line. If ∠AOC+∠BOD=850, then∠COD
In the given figure, O is the centre of a circle. If ∠AOB=100∘ and ∠AOC=90∘ then ∠BAC=?