In the given figure, the lines XY and MN intersect at point O. If ∠POY = 90° and a ∶ b = 2 ∶ 3, then the value of ∠c will be:
1
90°
2
126°
3
144°
4
150°
In the given figure, the lines XY and MN intersect at point O. If ∠POY = 90° and a ∶ b = 2 ∶ 3, then the value of ∠c will be: